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In its three most popular spellings -- Alan along with Allen and Allan -- this midcentury favorite has tended to skew older. It was a Top 100 name from 1938 to 1971, peaking at Number 40 in 1951. Alan has had leading roles on recent TV, in shows like Two and a Half Men, 24 and Boston Legal.

A spirited German name very popular in Italy and occasionally used here, Aldo is one of the unique baby names with international flair. And names that mean wise have an enduring appeal.

For anyone seeking a more unusual version of Alexander, this is a real winner.

Alexei could well join the legion of Alex names popular in the US. There are countless opportunities to liven up Alexander, and Alexei (or Alexey) is one of the most straightforward and appealing.

Wolfgang Amadeus Mozart's middle name could make an interesting pick for music-loving parents--if only in middle place. Amadeus is the title of a Peter Shaffer play which became an award-winning film in 1984.

Amalea is a feminine name with multiple possible origins. It may be a variant of Amalia, which derives from Germanic roots meaning "work" or "labor," suggesting industriousness. Alternatively, it could be related to the Greek name Amalia, meaning "tender" or "soft." The name has a melodic quality with its flowing vowels, giving it an elegant and feminine feel. While not among the most popular names, Amalea offers a fresh alternative to more common names like Amelia or Amalia. Its distinctiveness makes it appealing to parents seeking something recognizable yet unique. The name carries connotations of gentleness and beauty while maintaining a classic, timeless quality.

Amasa is a rare Biblical name borne by two figures. One is the son of Abigail and nephew of King David, who named him commander of the rebels. This Amasa met a tragic end when he was murdered by Joab. The other Biblical Amasa was one of the Children of Ephraim.

In Greek mytholgy, Antigone was the noble and courageous daughter of Oedipus, who acts as his guide after he blinds himself. Antigone is also the eponymous heroine of a play by Jean Anouilh.

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.

Beatrice is back. Stored in the attic for almost a century, the lovely Beatrice with its long literary (Shakespeare, Dante) and royal history is being looked at with fresh eyes by parents seeking a classic name with character and lots of upbeat nicknames, like Bea and Bee.

The name of an ancient Irish saint is in the contemporary Irish Top 50. While it's one of the rare Irish names for boys that hasn't immigrated to the U.S., it may follow brothers Aidan and Declan to our shores. The t is not pronounced.

Charles derives from the Germanic name Karl, meaning "man" or "free man", and is a royal name in multiple European countries. A famous early bearer is Charlemagne, King of the Franks and Lombards and then Roman Emperor in the 8th-9th centuries.

Appealing short form of the stuffy Cleveland, occasionally used on its own.

Dramatic and worldly, Cosimo was chosen by singer Beck and his wife, Marissa Ribisi, for their son. Now that Cosima has emerged as a starbaby favorite, twin brother Cosimo could join her.

This name found in both Celtic and Scandinavian mythology has gone from all-boy to almost all-girl, retaining a strong, unisex quality. However, it has dropped following its three-decade heyday from the 1960s to the 1990s.

Desiderio was the full name of the Cuban bandleader who famously Loved Lucy. There was also a Saint Desiderio. Major attraction: the great nickname Desi.

An medieval English form of Helen, the sensitive but clear-eyed Ellen has swung in and out of style for centuries, often alternating with the parent name. Ellen was the more common in medieval England, until after the Renaissance, when Helen overtook her. In Edith Wharton's The Age of Innocence, set at the end of the nineteenth century, one character wonders why another has not changed her "ugly" given name to something prettier, like Elaine—a statement few would make today.

Ellis is a former Old Man Name turned gender-neutral choice for the 21st century. It's one of the less used names in the currently popular El-family.