According to Wili[pedia, there have been four Medici popes:
Pope Leo X (December 11, 1475 - December 1, 1521), born Giovanni de' Medici, was pope from 1513 to his death.
Pope Clement VII (May 26, 1478 - September 25, 1534), born Giulio di Giuliano de' Medici, was a cardinal from 1513 to 1523 and was pope from 1523 to 1534.
Pope Pius IV (March 31, 1499 - December 9, 1565), born Giovanni Angelo Medici, was pope from 1559 to 1565. However, he was only distantly related to the other Medici Popes.
Pope Leo XI (June 2, 1535 - April 27, 1605), born Alessandro Ottaviano de' Medici, was pope from April 1, 1605, to April 27 of the same year.
Pope Leo X
Giovanni de'Medici
Pope Julius II was not of Medici family but a della Rovere.
No, Pope Saint Peter was the first pope.
Pope Sixtus IV
No. They were raised Cardinals and they both became Pope. Giovanni de Medici became Pope Leo X And Giulio de Medici became Pope Clement VII You also mentioned Giuliano de Medici. He died young killed during Easter Mass. He was stabled 19 times and died on the floor of the church. He was the father of Giulio de Medici mentioned above.
Pope Leo X
Giovanni de'Medici
He took the name of Pope Leo X.
Pope Leo became the Pope in 1513, his name also changed from Giovanni di Lorenzo de' Medici to Pope Leo.
Yes, Giuliano Medici is the younger brother of Lorenzo Medici.
He was the sone of Lorenzo de' Medici and Clarice Orsini.
Pope Julius II was not of Medici family but a della Rovere.
No, Pope Saint Peter was the first pope.
Pope Sixtus IV
A:Giovanni de Medici, who became Pope Leo X in 1513, was an immensely wealthy member of the Medici family that had effectively ruled Florence for generations. He was the son of Lorenzo "The Magnificent" de Medici, and the great-grandson of Cosimo de Medici. His older brother Piero "The Unfortunate" died in exile at a relatively young age. To become pope, Giovanni gave up the lordship of Florence, but ensured that the rule passed to another member of the Medici family.Having made his cousin, Giulio, a cardinal, he arranged his appointment to the lucrative post of vice-chancellor. He married his brother Guiliano to a French princess and made over to him the entire income of Parma, Piacenza and Modena, which had recently been incorporated into the Papal States. In 1517 he led a costly war that succeeded in securing his nephew, Lorenzo, as duke of Urbino, at considerable cost to the papal finances.
Clement VII