1231
From Freepedia
| Years: 1228 1229 1230 - 1231 - 1232 1233 1234 | |
| Decades: 1200s 1210s 1220s - 1230s - 1240s 1250s 1260s | |
| Centuries: 12th century - 13th century - 14th century 1231 state leaders | |
Events
- Ardengus becomes bishop of Florence.
- Emperor Frederick II promulgates the Constitutions of Melfi (also known as Liber Augustalis), a collection of laws for Sicily.
Births
- March 17 - Emperor Shijō of Japan (died 1242)
- Guo Shoujing, Chinese astronomer and mathematician
- John de Warenne, 7th Earl of Surrey (died 1304)
- Roger Mortimer, 1st Baron Wigmore (died 1282)
Deaths
- April 6 - William Marshal, 2nd Earl of Pembroke
- June 13 - Anthony of Padua, Portuguese saint (born 1195)
- November 6 - Emperor Tsuchimikado of Japan (born 1196)
- November 17 - Elisabeth of Hungary, daughter of Andrew II of Hungary and saint (born 1207)
- Abd-el-latif, Arab physician and traveller
