Duke Otto II of Bavaria was born 7 April 1206 in Kehlheim and died 29 November 1253 in Landshut. His full name was Otto II der Erlauchte , Herzog von Bayern, Pfalzgraf bei Rhein, and he was the Duke of Bavaria and Count Palatine of the Rhine (see Palatinate). He was a son of Louis I. April 7 is the 97th day of the year in the Gregorian calendar (98th in leap years). ... Events Temujin is proclaimed Genghis Khan of the Mongol people, founding the Mongol Empire Qutb ud-Din proclaims the Mameluk dynasty in India, the first dynasty of the Delhi Sultanate. ... November 29 is the 333rd (in leap years the 334th) day of the year in the Gregorian calendar. ... For broader historical context, see 1250s and 13th century. ... There is also a Landshut in the Canton of Bern in Switzerland, see Landshut, Switzerland. ... The Free State of Bavaria  (German: Freistaat Bayern), with an area of 70,553 km² (27,241 square miles) and 12. ... A palatinate is an area administered by a count palatine, originally the direct representative of the sovereign but later the hereditary ruler of the territory subject to the crowns overlordship. ... Duke Louis I of Bavaria was born 23 December 1173 in Kehlheim and died 15 September 1231 in Kehlheim. ...

At the age of six, Otto was married with Agnes of Palatinate, and with this marriage, he inherited Palatinate. His descendents kept it as a Wittelsbach possesion until 1918. Otto acquired the rich regions of Bogen in 1240, and Andechs and Ortenburg in 1248. A palatinate is an area administered by a count palatine, originally the direct representative of the sovereign but later the hereditary ruler of the territory subject to the crowns overlordship. ... The Wittelsbach family is a European royal family and a German dynasty from Bavaria. ... 1918 (MCMXVIII) was a common year starting on Tuesday of the Gregorian calendar (see link for calendar) or a common year starting on Wednesday of the Julian calendar. ... Events Batu Khan and the Golden Horde sack the Ruthenian city of Kyiv Births Pope Benedict XI Deaths April 11 - Llywelyn ap Iorwerth, also known as Llywelyn The Great Prince of Gwynedd Monarchs/Presidents Aragon - James I King of Aragon and count of Barcelona (reigned from 1213 to 1276) Castile... The Benedictine abbey of Andechs is a former place of pilgrimage on a hill east of the Ammersee in the Landkreis of Starnberg (Oberbayern) in Germany. ... Events Louis IX of France departs on the Seventh Crusade for Egypt Kingdom of Castile captures city of Seville from Muslims Cologne cathedral: old cathedral burns down April 30; foundation stone to current cathedral laid August 15 Births Deaths January 4 - King Sancho II of Portugal, in exile in Toledo...

After a dispute with emperor Frederick II was ended, he joined the Hohenstaufen party in 1241. His daughter, Elizabeth, was married to Frederick's son Conrad IV. Because of this, Otto was banned by the pope. Frederick II (left) meets al-Kamil (right). ... The Hohenstaufen were a dynasty of Kings of Germany, many of whom were also crowned Holy Roman Emperor and Dukes of Swabia. ... Events April 5 - Mongols of Golden Horde under the command of Subotai defeat feudal Polish nobility, including Knights Templar, in the battle of Liegnitz April 27 - Mongols defeat Bela IV of Hungary in the battle of Sajo. ... Conrad IV, Conrad of Hohenstaufen (April 25, 1228 Andria, Italy – May 21, 1254, Lavello), was king of Jerusalem (as Conrad II) 1228–1254, of Germany 1237–1254, and of Sicily (as Conrad I) 1250–1254. ... The pope is the Patriarch of the West and Bishop of Rome, and leader of the Catholic Church. ...