"Giovanni di Bicci de´ Medici (c. 1360 – February 1429) was an Italian banker and founder of the Medici Bank. While other members of the Medici ...
family, such as Chiarissimo di Giambuono de´ Medici, who served in the Signoria of Florence in 1201, and Salvestro de´ Medici, who was implicated in the Ciompi Revolt of 1378, are of historical interest, it was Giovanni´s founding of the family bank that truly initiated the family´s rise to power in Florence. He was the father of Cosimo de´ Medici and of Lorenzo the Elder; grandfather of Piero di Cosimo de´ Medici; great-grandfather of Lorenzo de´ Medici (the Magnificent); and the great-great-great-grandfather of Cosimo I de´ Medici, Grand Duke of Tuscany." - (en.wikipedia.org 13.12.2020)
