1171

Updated on Oct 09, 2024

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Year 1171 (MCLXXI) was a common year starting on Friday (link will display the full calendar) of the Julian calendar.

Events

Saladin abolishes the Fatimid Caliphate, restoring Sunni rule in Egypt.

Manuel I Comnenus orders all the Venetians in the Byzantine Empire to be arrested and their property confiscated.

Rhys ap Gruffydd agrees to negotiate with Henry II of England.

Construction of the Cathedral of San Sabino in Bari is completed.

Serbian ruler Stefan Nemanja begins his sole reign.

Alfonso II of Aragon conquers Caspe and Teruel.

Henry II of England invades Ireland with the aid of the ousted King of Leinster, Diarmait Mac Murchada (dies May 1). As is usual at this time, Henry commandeers merchant ships as part of his invasion. Henry claims the ports of Dublin, Waterford, and Wexford for himself and promises the Irish chieftains protection if they will acknowledge him as their overlord. This begins eight centuries of conflict between Ireland and England. Ascall mac Ragnaill, last Norse–Gaelic King of Dublin, is captured while trying to retake Dublin from the Cambro-Norman Richard de Clare (Strongbow), perhaps in company with Sweyn Asleifsson, and beheaded; before the end of the year, de Clare relinquishes possession of the city to his own liege lord, Henry. Ireland would be enslaved for the next 700 years.

Alliance of Pisa and Florence against Lucca and Genoa.

The successors of Robert Burdet leave Catalonia for Majorca, marking the end of the attempts to create a Norman principality in Iberia.