1171

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

Millennium:	2nd millennium
Centuries:	11th century 12th century 13th century
Decades:	1150s 1160s 1170s 1180s 1190s
Years:	1168 1169 1170 1171 1172 1173 1174

1171 in various calendars

Gregorian calendar	1171 MCLXXI
Ab urbe condita	1924
Armenian calendar	620 ԹՎ ՈԻ
Assyrian calendar	5921
Balinese saka calendar	1092–1093
Bengali calendar	578
Berber calendar	2121
English Regnal year	17 Hen. 2 – 18 Hen. 2
Buddhist calendar	1715
Burmese calendar	533
Byzantine calendar	6679–6680
Chinese calendar	庚寅年 (Metal Tiger) 3867 or 3807     — to — 辛卯年 (Metal Rabbit) 3868 or 3808
Coptic calendar	887–888
Discordian calendar	2337
Ethiopian calendar	1163–1164
Hebrew calendar	4931–4932
Hindu calendars
- Vikram Samvat	1227–1228
- Shaka Samvat	1092–1093
- Kali Yuga	4271–4272
Holocene calendar	11171
Igbo calendar	171–172
Iranian calendar	549–550
Islamic calendar	566–567
Japanese calendar	Kaō 3 / Jōan 1 (承安元年)
Javanese calendar	1078–1079
Julian calendar	1171 MCLXXI
Korean calendar	3504
Minguo calendar	741 before ROC 民前741年
Nanakshahi calendar	−297
Seleucid era	1482/1483 AG
Thai solar calendar	1713–1714
Tibetan calendar	阳金虎年 (male Iron-Tiger) 1297 or 916 or 144     — to — 阴金兔年 (female Iron-Rabbit) 1298 or 917 or 145

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.[1] 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.[1] 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.
• Pisa and Florence form an alliance 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.[2]

Births

• August 15 – King Alfonso IX of León (d. 1230)
• Agnes of France, Empress consort of the Eastern Roman Empire, daughter of Louis VII of France (d. after 1207)

Deaths

• February 20 – Conan IV, Duke of Brittany (b. 1138)
• April 3 – Philip of Milly, seventh Grand Master of the Knights Templar (b. c. 1120)
• August 8 – Henry of Blois, bishop of Winchester (b. 1111)
• November 8 – Baldwin IV, Count of Hainaut (b. 1108)
• date unknown
  • Diarmait Mac Murchada, King of Leinster (b. 1110)
  • Pulcelina of Blois, French Jew
  • Gleb of Kiev, Grand Prince of Kiev
  • Yesügei, father of Genghis Khan

References

1. Warren, W. L. (1961). King John. University of California Press. pp. 34, 121.
2. McGrank, Lawrence (1981). "Norman crusaders and the Catalan reconquest: Robert Burdet and te principality of Tarragona 1129-55". Journal of Medieval History. 7 (1): 67–82. doi:10.1016/0304-4181(81)90036-1.