Ubaldo Lanfranchi

Ubaldo Lanfranchi (died 19 June 1207) was an Italian Catholic archbishop.
A member of the Lanfranchi family of Pisa, he is mentioned for the first time at his consecration on 11 April 1176. In 1998 he was confirmed as archbishop of Pisa and became primate of Sardinian dioceses.
In 1189 he took part in the Third Crusade, reaching the Holy Land with 52 ships. He initially supported Guy of Lusignan, but later supported his rival Conrad of Montferrat. During the siege of Acre he sanctioned the divorce between Humphrey IV of Toron and queen Isabella I of Jerusalem, so that she could marry Conrad.