Ubaldo Lanfranchi was an Italian Catholic archbishop.

A member of the Lanfranchi family of Pisa

Pisa

Pisa is a city in Tuscany, Central Italy, on the right bank of the mouth of the River Arno on the Tyrrhenian Sea. It is the capital city of the Province of Pisa...

, he is mentioned for the first time at his consecration on 11 April 1176. In 1998 he was confirmed as primate of Sardinian dioceses.

In 1189 he took part in the Third Crusade

Third Crusade

The Third Crusade , also known as the Kings' Crusade, was an attempt by European leaders to reconquer the Holy Land from Saladin...

, reaching the Holy Land

Holy Land

The Holy Land is a term which in Judaism refers to the Kingdom of Israel as defined in the Tanakh. For Jews, the Land's identifiction of being Holy is defined in Judaism by its differentiation from other lands by virtue of the practice of Judaism often possible only in the Land of Israel...

 with 52 ships. He initially supported Guy of Lusignan

Guy of Lusignan

Guy of Lusignan was a Poitevin knight, son of Hugh VIII of the prominent Lusignan dynasty. He was king of the crusader state of Jerusalem from 1186 to 1192 by right of marriage to Sibylla of Jerusalem, and of Cyprus from 1192 to 1194...

, but later supported his rival Conrad of Montferrat

Conrad of Montferrat

Conrad of Montferrat was a northern Italian nobleman, one of the major participants in the Third Crusade. He was the de facto King of Jerusalem, by marriage, from 24 November 1190, but officially elected only in 1192, days before his death...

. During the siege of Acre

Siege of Acre

The Siege of Acre was one of the first confrontations of the Third Crusade, lasting from August 28, 1189 until July 12, 1191, and the first time in history that the King of Jerusalem was compelled to personally see to the defence of the Holy Land...

 he sanctioned the divorce between Humphrey IV of Toron

Humphrey IV of Toron

Humphrey IV of Toron was the lord of Toron, Kerak, and Oultrejordain in the crusader Kingdom of Jerusalem.-Biography:...

 and queen Isabella I of Jerusalem, so that she could marry Conrad.