which empire? generally, a king who defeated other kings and absorbed their kingdoms into his own would be called an Emperor of an Empire. Be more specific for an exact name of an empire founder
Francisco Pizarro defeated the Inca empire in 1535.
Napoleon Bonaparte and the French were defeated in that war.
It was Napoleon Bonaparte
Well, seeing as how this question is filled under Alexander the Great, I would assume that you should know that the leader of Macedonia, Alexander the Great, defeated the Persian empire and held the title and office of the king of Persians.
Napoleon.
Ojibwe leader Minavavana began his speech with this after the British defeated the French in the Seven Years' War.
Mansa Muse
Napolean Bonaparte
Cyrus
The Aztec Empire was defeated by Spanish conquistadors led by Hernán Cortés. The conquest began in 1519 and culminated in 1521 when Cortés and his forces captured the Aztec capital, Tenochtitlan. This marked the end of the Aztec Empire and the beginning of Spanish colonization in Mexico.
The Persian leader defeated by the Greeks was Darius.