Rapper Tupac Amaru Shakur was named after 18th century Peruvian revolutionary Túpac Amaru. There was also a 15th century Incan ruler whose name was an extension of the Quechua Topa or Tupa, and the Tupaq spelling is also used. Tupac is a prime example of a one-person name, used for almost no babies, though that could change. Some singular celebrity or character names only become widely-used only long after the fame of the original bearer, when the association of the name with that bearer begins to fade.