To Americans, a quintessential British name, introduced to the U.S. public by suave journalist/PBS Masterpiece Theater host Alastair Cook. Sometimes used in the U.S. by parents with Scottish heritage.

Alastair

Albert has acquired a new gloss as one of the top <a href="https://nameberry.com/list/341/royal-names-for-boys">royal baby boy names</a>, a considerable upgrade from its serious, studious image (think Einstein, Schweitzer). 

Albert became popular in Britain following the 1840 marriage of Queen Victoria to the German Prince Albert and remained in vogue for 80 years. In the US, it's been on a downward slide for a century, though it's always ranked in the US Top 1000 and is a Top 100 name in England and Denmark.

Along with such stalwarts as Walter and George, it could now make a distinctive yet classic choice. Enlivening nickname Bertie is popular on its own in the UK.

Albert

Amadeo and Amedeo are both valid Italian forms of the Roman Amadeus, most famous as the middle name of the composer Mozart as well as the title of a movie about him. Mozart's name was actually the Greek Theophilus, but he transformed it to the Latin version. Amadeo is also used in Spain, where it was the name of a 19th century king who was born in Italy.

Amadeo

Arthur, once the shining head of the Knights of the Round Table, is, after decades of neglect, now being polished up and restored by stylish parents, inspired perhaps by the new generation of royals. Arthur has led the list of possible names for the young British princes, chosen as a middle name for Prince Louis, son of William and Catherine, Prince and Princess of Wales.
 In addition to its leading role in the Arthurian legends, Arthurs figure prominently in Nathaniel Hawthorne's The Scarlet Letter, Edgar Allan Poe's The Narrative of Arthur Gordon Pym of Nantucket and George Eliot's Adam Bede. There are also countless Arthurs in children's literature, movies, and TV -- including The Fonz of Happy Days fame. More recently, Arthur was the son of Mr. and Mrs. Santa in the eponymous movie Arthur Christmas.
 Arthur has many notable namesakes, including playwright Arthur Miller; writer/astronomer Arthur C. Clarke; writers Arthur Conan Doyle, Arthur Rimbaud and Arthur Koestler; philosopher Arthur Schopenhauer; conductor Arthur Fiedler; and tennis great Arthur Ashe, the first African American to win the U.S. Open. Queen Victoria's seventh child was Prince Arthur.
 Arthur was a Top 20 name from at least 1880 through 1926. And in 2011, actress Selma Blair named her son Arthur Saint.

Arthur

Parents are beginning to look at imposing, somewhat fusty-sounding names like this one with fresh eyes: they definitely make a strong statement.
 Augustus originated as a title given by the Roman Senate to the first Roman Emperor, Octavian, the adopted son of Julius Caesar, in 27 B.C. and adopted by him as a name. In the U.S., Augustus reached a high of Number 175 in 1880, fell off the list in 1970, then made a return appearance in 1991, and is now on the rise once more. 
 Augustus Snodgrass is a character in Charles Dickens' novel The Pickwick Papers, and George Bernard Shaw wrote a play titled "Augustus Does His Bit." Augustus John was a famed British portrait painter, and Augustus Saint-Gaudens a well-known sculptor.
 No starbaby Augustuses as yet, but Dixie Chick Emily Robson used Augustus as a middle name for her son, and Dan Aykroyd did the same---for his daughter.
 The diminutive form, Augustine, is also an interesting option; variant Augustin was used by model Linda Evangelista; and then there is always über-popular August.

Augustus

Dimitri is a Slavic variation of the Russian Dmitriy, a name that comes from the Greek Demetrius. Demetrius was derived from Demeter, the name of the Greek goddess of fertility and farming. Among the possible spelling variations are Dmitri, Dmitrii, Dmitriy, and Dmitry.
 
Dimitri is a worldly, artistic, and attractive name. It has been on and off the bottom of the US Top 1000 list in recent years. Dmitri is another possibility that may prove more challenging for some English speakers to pronounce, although it was the spelling Mila Kunis and Ashton Kutcher chose for their son.

Dimitri

Emmanuel--spelled with one or two 'm's'-- was popular with early Jewish immigrants, until overused nickname Manny caused it to fade. Now, this important biblical name is being revived in its full glory.
 In the Bible, this is the name given to the promised Messiah, in the prophecy of Isaiah.
 The name is popular in Spain as Manuel; the name of the German philosopher is spelled Immanuel Kant.

Emmanuel

Eric is derived from the Old Norse name Eiríkr, from the components ei, meaning "ever," and ríkr, "rule." It was adopted by English speakers in the mid-nineteenth century, who were already familiar with the exploits of the tenth century Viking navigator and discoverer of Greenland, Eric the Red. Erik is an alternate spelling and the preferred form of the name across much of Europe.
 
Eric—the all-time most popular Scandinavian <a href="https://nameberry.com/boys-names">boys’ name</a> in the U. S.—peaked in the Ricky Nelson/Rick Springfield period.
 From the mid-sixties to the late eighties, Eric was on the Top 25 list. Some of its best-known bearers: Eric Clapton, Eric Idle, Eric Dane and major characters in The Little Mermaid, True Blood and Friday Night Lights, not to mention Eric Cartman on South Park. Simon Cowell named his first son Eric after his father.
 Erik is the Old-World spelling of Eric, now mega popular in Germany and Sweden.

Eric

Ferdinand, a traditional name in the royal families of Spain and a handsome young prince shipwrecked on Prosper's island in Shakespeare's The Tempest has, unfortunately, to the American ear a somewhat heavy and clumsy feel – most likely because of the bull connection. In the 1880's it was in the 200's on the US pop list, but has been off completely since 1986. 

 The sleeker Spanish and Portuguese version Fernando, on the other hand, is Number 253 (and 28 in Chile, 59 in Spain). An interesting Dutch spin: the short form Dinand, after a popular singer.
Portuguese explorer Ferdinand Magellan was the first European to cross the Pacific and the first person to circumnavigate the earth.

Ferdinand

Frederick, and friendlier nickname Fred, seemed almost to have disappeared, leaving just the memory of Freds past such as Astaire, Mr. Rogers and Flintstone. But today's parents are beginning to recognize it as a strong classic and one of the top <a href="https://nameberry.com/list/341/royal-names-for-boys">royal baby boy names</a>.
 Previously, Frederick had taken on a rather forbidding, foreign, military air, reminiscent of Frederick the Great, the enlightened king of Prussia who laid the foundations of the powerful Prussian empire.
 For African-Americans, Frederick can be seen as a hero name, honoring Frederick Douglass, who rose from slavery to power as a political activist.
 Frederick appears as a character in Shakespeare's As You Like It and the novels of, among others, Jane Austen and Henry James.
The name is often streamlined to Frederic and even Fredric. And if you don't like Fred or Freddie (though we do), another nickname is Fritz.
 Federico is the appealing Italian and Spanish form, as in renowned poet Federico Garcia Lorca.

Frederick

Giovanni is a venerable Italian classic that suddenly sounds fresh and cool. Ubiquitous in Italy, it has countless notable namesakes, from writer Boccaccio to designer Versace (nn Gianni).

Giovanni

Hugo, the Latin form of Hugh, has more heft and energy than the original -- and of course we love names that end (or begin, for that matter) with an o. This one is especially appealing because it's backed up by lots of solid history and European style.
 Hugo is one of those names that misses by a single year ranking in the Top 1000 for its entire history. It fell off the list in 1948, the height of post-WWII pro-American fervor, before heading back up.
 Hugh has held steady in the middle of the US Top 1000 for more than 40 years now, but we predict might be headed for the kind of popularity it enjoys in the rest of the English-speaking world and many European countries.
 Hugo ranks in or near the Top 100 in countries and cultures as diverse as Sweden and Spain, France and Finland. It's also a favorite boys' name on Nameberry, usually a harbinger of future success in the US as a whole.
 In the seventh Harry Potter novel, Ron and Hermione bestow the name Hugo on their son. Hugo Strange, meanwhile, is a longtime adversary of Batman. 
 Real-life Hugos include Hugo Chavez, the late president of Venezuela, and the fashion world's Hugo Boss. In the more distant past there was the distinguished Supreme Court Justice Hugo Black.
 Trivia tidbit: The annual awards for sci-fi writing are called the Hugos, honoring early genre writer Hugo Gernsback.

Hugo

Immortal through its association with the ancient Caesar (it was his clan name), Julius may still lag behind Julian, but is definitely starting to make a comeback, and in fact feels more cutting edge, in line with the current trend for Latin -us endings. 
 A common Christian name in Roman times—as in Pope Julius I—it was rarely used in English speaking countries until the nineteenth century.
Some Julius connections: basketball great Julius "Dr. J" Erving, characters in the Artemis Fowl book series and television show Everybody Hates Chris, Groucho Marx's birth name, the comic monkey created by Paul Frank, and the Orange Julius drink.

Julius

Karl

Kate and William shocked the world when they announced that they'd named their third child Louis -- Prince Louis Arthur Charles, to be more precise. But we've been predicting a comeback for this classic name for a long time. Both Louis and Lewis are already quite popular again in Britain. And several other high-profile parents —like actors Sandra Bullock and Bill Pullman— beat the Duke and Duchess to the punch by naming their sons Louis years ago. While the pronunciation in Britain is normally the French LOO-ee, in the US the final S is often pronounced. To get around the pronunciation confusion, many parents especially In the UK, go with the forms Louie or Lewis, with Louie ranking even higher than Louis. Lewis is in the Scottish Top 10.

Louis

Lucius is an old Roman clan name that has lots of religious and literary resonance, yet is still vital today. It was the name of three popes, appears in several Shakespeare plays, and, like all the names beginning with 'luc' relates to the Latin word for light.It was one of a limited number of forenames used in ancient Rome, and because of its meaning was often given to boys born at dawn.
 In the Bible, Lucius is the name of three people; Shakespeare used it for the son of Titus in Titus Andronicus, a young servant of Brutus in Julius Caesar, a lord in Timon of Athens and a Roman general in Cymbeline.
 Other fictional bearers of the name can be found in Le Morte d'Arthur, The Golden Ass, Ralph Ellison's Invisible Man, Faulkner's The Reivers, Batman, Talladega Nights, and The Incredibles. Lucius Malfoy, the father of Draco, is a Harry Potter villain, and other Luciuses have been portrayed on screen by Morgan Freeman, Joaquin Phoenix and Luke Wilson.
 Real-life namesakes include renowned World War II General Lucius B. Clay, and writer, photographer, and bon vivant Lucius Beebe.

Lucius

Magnus is a Latin name, literally meaning "greatest," that has a Scandinavian feel. It dates back to Charlemagne being called Carolus Magnus, or Charles the Great. Norwegian king Magnus I, named after Charlemagne, introduced it to his culture, and thus Magnus was the name of six early kings of Norway and four of Sweden. It is still a highly popular name in Denmark and Norway.
 
Magnus, a powerful name with a commanding presence, is one of the newly unearthed ancient artifacts. It was picked for their sons by Will Ferrell (whose wife Viveca Paulin is Swedish), Kristy Swanson, and Elizabeth Banks—likely credited for this name's jump into the Top 1000 for the first time in 2013, as one of the year's fastest-rising names. Its fashionable s ending may keep it in popular use.
 
Magnus has made appearances as a vampire in Anne Rice's Vampire Chronicles and as a character in Roald Dahl's Matilda. And for an extra ego boost, in Charles Dickens's The Pickwick Papers, there's the following dialogue: 
 "'Magnus is my name. It's rather a good name, I think, sir.'
 'A very good name, indeed,' said Mr. Pickwick."

Magnus

Mustafa is a name widely used in Turkey, as it was the given name of the man popularly known as Ataturk, the founder of modern Turkey. Mustafa is also an epithet of the prophet Muhammad and was the name of four Ottoman sultans. Other spellings include Mostafa, Moustafa, and Moustapha.

Mustafa

Nicholas is derived from the Greek Nikolaos, a name that evolved from the components nikē, meaning "victory", and laos, "people." It shares origins with Nike, the name of the Greek goddess of victory. Nicholas is also a New Testament name that is well-used in literature, such as in Dickens's Nicholas Nickleby.
 
And then there's St. Nicholas who, in addition to bringing bags of toys once a year, is also the patron saint of schoolchildren, mechanics, sailors, scholars, brides, bakers, travelers, and Russia, where the name was a star of the czarist dynasty.
 
Nicholas, though it has lost some ground (it was in the Top 10 from 1993 to 2002), is still a popular classic that would make an attractive, solid choice.
 
Along with this historical depth, Nicholas, and nicknames Nick and Nicky, project an aura of masculine panache, and has long been a favorite of writers for rich boys, Romeos, thugs and detective characters.
 
Offshoots Cole and Colin have long had lives of their own. Short form Nico is hot and getting hotter.

Nicholas

Now that the show has gone into reruns, does anybody still love Raymond? Though it's been long dormant, some parents, including Jack Nicholson, are finding its <a href="https://nameberry.com/lists/category/cool-names">cool name</a> component, largely through the nickname Ray. 
 Raymond was introduced into England by the Normans and was a favorite in the time of the Crusades. Raymond was a Top 20 name in 1900, and continued to be popular through the era of Raymond Chandler and Raymond Burr and Raymond Massey. More recently there was the eminent short story writer Raymond Carver.

 Some livelier Raymond relatives: the Latinate Ramon and Raimundo, the Irish Reamonn (with nickname Rea) and the surname Redmond.

 Bottom line: Raymond is a new member of the Geek Chic contingent, on the heels of nickname Ray.

Raymond

He was the original Roman, Remus's twin and a founder of Rome. But parents attracted to this name are advised to read the legend first. Romulus does have some less than savory characteristics, including killing his twin brother and making Rome in his own image, and is later deified as Quinnius. Romy and Quinn might make good <a href="https://nameberry.com/blog/twin-names-the-ultimate-guide">twin names</a>.

Romulus

A common epithet of Christ, frequently heard in the Hispanic community, Salvador could also be a great choice for artistic parents, given the continuing popularity of Dada and Surrealist painter Salvador Dalí. (If Monet and Raphael get a look in, why not Salvador?)

Salvador

An elegant, continental name for the post-Steve era. It debuted on the US Top 1000 in 1949 and has been on the list every year since except for a year off in 2008.

Stefan

This dignified German form of William belonged to two German Emperors and Kings of Prussia, as well as a host of other important historical figures. These include composer (Wilhelm) Richard Wagner, philosophers Georg Wilhelm Friedrich Hegel and Friedrich Wilhelm Nietzsche, mathematician Gottfried Wilhelm von Leibniz, and physicist Wilhelm Roentgen, who discovered the X-ray. It now sounds rather dated in Germany, however, having dropped out of the Top 20 there in the late 1920s and continuing to decline since.

Wilhelm

tgannon1423's list "Historical Prince Names" of 24 great name ideas: Alastair - Wilhelm!

Historical Prince Names

The following list contains unique, uncommon, or noteworthy names of various princes from throughout history. I've avoided commonly used names. All names were taken from various Wikipedia articles.