Milan is a city of the Lombardy region in northern Italy. Leonardo da Vinci lived in Milan for around twenty years in order to work for the Sforza family. There, he created his first plans for the largest equestrian statue in the world. He was forced in 1499, though, when Milan was invaded by the French and the Sforza family fled the city. Leonardo would later return to Milan in 1506. 

This is the place where Jesus Christ is believed to have been baptized, in the Jordan River. It is now considered an important place where many Christian pilgrims visit during their pilgrimage to the Holy Land. It is considered the land of Jesus Christ's "spiritual birth" (as opposed to his physical birth in Bethlehem), and has also been named the third holiest place in the world by many Christians.

San Salvi is a monastery in Florence in which The Baptism of Christ was originally kept. It is a 16th century Vallombrosian monastery. Vallombrosians are a religious order of the Catholic church, such as the Benedictines, but the Vallombrosians are centered in Vallombrosa, which is considered a summer resort in Florence, Italy.

Florence, Italy was the location of Andrea del Verrocchio's workshop until the later years of his life when he moved to Venice.  This is where he and a young Leonardo da Vinci worked on creating the palla and cross that topped the lantern on the Florence Duomo.  That project in particular lasted from 1468 to 1471, and 1472 is suspected to be the time that da Vinci's apprenticeship with Verrocchio ended and he began to take on projects of his own.  During this time, it seems he still stayed with Verrocchio as a collaborator until 1476, while simultaneously starting his profess