Centuries:	10th century - 11th century - 12th century
Decades:	1060s  1070s  1080s  - 1090s -  1100s  1110s  1120s
Years:	1088 1089 1090 - 1091 - 1092 1093 1094

1091 by topic

Lists of leaders

State leaders - Sovereign states

Birth and death categories

Births - Deaths

Establishments and disestablishments categories

Establishments - Disestablishments v • d • e

1091 in other calendars

Gregorian calendar	1091 MXCI
Ab urbe condita	1844
Armenian calendar	540 ԹՎ ՇԽ
Bahá'í calendar	-753 – -752
Berber calendar	2041
Buddhist calendar	1635
Burmese calendar	453
Byzantine calendar	6599 – 6600
Chinese calendar	庚午年十二月初九日 (3727/3787-12-9) — to — 辛未年十一月十九日 (3728/3788-11-19)
Coptic calendar	807 – 808
Ethiopian calendar	1083 – 1084
Hebrew calendar	4851 – 4852
Hindu calendars
- Vikram Samvat	1146 – 1147
- Shaka Samvat	1013 – 1014
- Kali Yuga	4192 – 4193
Holocene calendar	11091
Iranian calendar	469 – 470
Islamic calendar	483 – 484
Japanese calendar
Korean calendar	3424
Thai solar calendar	1634
v • d • e

Events

• Henry, son of William I, attempts a coup against his brothers but fails to seize the English throne.
• With the take of Noto, the Normans complete the 30 year long conquest of Sicily from the Islamic rulers.
• Roger Guiscard takes Malta.
• William Rufus of France invades Normandy and gains a foothold in it.
• The Islamic Abbadid dynasty ruling in Spain falls when the Almoravids storm Seville.
• Battle of Levounion: The Pechenegs besiege Constantinople, but are defeated so decisively by Emperor Alexius I that they fade into oblivion.
• Cardiff Castle is built.
• Athanasius VI bar Khamoro becomes Syriac Orthodox Patriarch of Antioch.
• October 23 — London Tornado of 1091: A T8/F4 tornado is recorded in St Mary-le-Bow of London, England, which destroys London Bridge.

Births

Deaths

• Robert D'Oyly, first Lord of Oxford Castle
• 17 June — Dirk V, Count of Holland