Historical Events Feb 15 Khwarezmian city of Bukhara taken by Genghis Khan's Mongol army after a 12-day siege, with the death of about 30,000 of its citizens Apr 26 German king Frederick II grants bishops sovereign rights May 16 English King Henry III lays the foundation stone for a new Lady Chapel, start of the rebuilding of Westminster Abbey, in London Aug 8 Sweden is defeated by Estonian tribes in the Battle of Lihula Nov 22 Frederick II crowned Holy Roman Emperor in Rome by Pope Honorius III Famous People Born in 1220 Alexander NevskyMay 30 More Famous Birthdays World Leaders in 1220 Genghis Khan Famous People Who Died in 1220 Apr 15 Adolf I, Archbishop of Cologne, dies at ~63 1219 History by Year 1221