Leonidas is considered one of the legendary rulers of Sparta. It is estimated he was born circa 540 B.C. and died in 480 B.C.
Spartacus -- (edited on 8/12/2015) whoever wrote this answer has no clue. Leonidas I (ref. 300) was born 540BC, and died 480BC. Spartacus (the starz show spartacus) was born 111BC and died 71BC. Spartacus was born more than 300 years after Leonidas died, therefore Leonidas came first.
Leonidas Pyrgos was born in 1871.
Leonidas Bott was born in 1889.
Leonidas Hubbard was born in 1872.
Toto Leonidas was born in 1960.
Leonidas Proaño was born in 1910.
Leonidas I. Robinson was born in 1877.
Leonidas Tapia was born in 1937.
Leonidas Daskalidès was born in 1876.
Leonidas Pantelides was born in 1953.
Leonidas Berry was born in 1902.
Leonidas Iasonidis was born in 1884.