Conrad of Montferrat

Conrad I
13th-century depiction of Conrad's marriage to Isabella
King of Jerusalem
Reign1190–1192
PredecessorsSibylla and Guy
SuccessorIsabella I
Co-rulerIsabella I
ContenderGuy (1190–1192)
Marquis of Montferrat
Reign1191–1192
PredecessorWilliam V
SuccessorBoniface I
Bornc. 1146
Montferrat, Kingdom of Italy (Holy Roman Empire)
Died28 April 1192 (aged 45–46)
Tyre, Kingdom of Jerusalem
SpousesUnknown first wife (dead by 1186)
Theodora Angelina, sister of Isaac II Angelos (m. 1187, ann. 1190)
Isabella I of Jerusalem (m. 1190)
IssueMaria, Queen of Jerusalem
HouseAleramici
FatherWilliam V, Marquess of Montferrat
MotherJudith of Babenberg
ReligionRoman Catholicism

Conrad of Montferrat (Italian: Corrado del Monferrato; Piedmontese: Conrà ëd Monfrà) (c. 1146 – 28 April 1192) was a nobleman, one of the major participants in the Third Crusade. He was the de facto King of Jerusalem (as Conrad I) by virtue of his marriage to Isabella I of Jerusalem from 24 November 1190, but officially elected only in 1192, days before his death. He was also the eighth Marquess of Montferrat from 1191.