Alessandro "il Moro" de'Medici, duca di Firenze

- https://en.wikipedia.org/wiki/Alessandro_de%27_Medici,_Duke_of_Flor...

His mother was presumably an Arab slave or a peasant woman from Roman Campagna. He was brought up in the Medici palace in Florence from where the family had fled in 1527 on hearing that Rome had been sacked. Following the Treaty of Barcelona he returned to Florence in 1530 at the head of an army of Spanish mercenaries where the governing body declared him an hereditary duke after the dissolution of the Signoria. However, his power faltered after the death of Clement VII. At the age of 26 he was killed by an assassin who was presumably hired by his cousin, Lorenzino (the son of the great-grandson of Lorenzo il Vecchio).

-https://it.wikipedia.org/wiki/Alessandro_de%27_Medici_(duca_di_Fire...