St. Galdinus, a Milanese noble, was born in Milan, Italy, in 1100. He supported the Roman pope during the schism in 1159. He left Milan in 1161 when the city was besieged in support of the anti-pope, and yet St. Galdinus was still elected bishop of the city. He later became a cardinal, an archbishop and a papal legate to Lombardy. After the war, he helped rebuild Milan. St. Galdinus died in 1176 right after a sermon against heresies.