Medici - Season 1

The series is set in the 15th-century Florence, and the protagonist is Cosimo the Elder, who was elected head of the Florentine Republic in 1434. Cosimo has inherited the Bank of Medici from his father Giovanni, who has been mysteriously poisoned. Through various flashbacks (20 years prior), we are introduced to Florence at the time of Giovanni, and to his relationship with his sons Cosimo and Lorenzo.