List of Famous people born on April 21st

Numa Pompilius was the legendary second king of Rome, succeeding Romulus after a one-year interregnum. He was of Sabine origin, and many of Rome's most important religious and political institutions are attributed to him, such as the Roman Calendar, Vestal Virgins, the cult of Mars, the cult of Jupiter, the cult of Romulus, and the office of Pontifex Maximus.

Nelo Risi was an Italian poet, film director, translator and screenwriter, brother of cinematographer Fernando Risi and director Dino Risi.

Sir John Clifford Mortimer was an English barrister, dramatist, screenwriter, and author.

Mark Grigoryevich Fradkin was a Soviet composer, author of numerous popular songs and musical scores for forty films. In 1979, Mark Fradkin received the USSR State Prize and, in 1985, he was granted the status of the People’s Artist of the USSR.

Gustaw Teofil Holoubek was a Polish actor, director, member of the Polish Sejm, and a senator.

William Charles Chamberlain was a rear admiral in the Royal Navy.