- 1239
Events
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20 March -Pope Gregory IX excommunicatesFrederick II, Holy Roman Emperor .Undated
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Frederick II, Holy Roman Emperor conducts theSiege of Faenza .
* The main tower ofLincoln Cathedral collapses.Births
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June 17 - KingEdward I of England (d.1307 )
*December 17 -Kujo Yoritsugu , Japanese shogun (d.1256 )
*Peter III of Aragon (d.1285 )
*John II, Duke of Brittany (d.1305 )
*Ippen , Japanese monk (d.1289 )Deaths
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March 3 -Vladimir III Rurikovich , Grand Prince of Kiev (b.1187 )
*March 20 -Hermann von Salza , fourth Grand Master of the Teutonic Knights
*March 28 -Emperor Go-Toba of Japan (b.1180 )
*Cormac mac Art O Melaghlain , King of MeathOngoing Events
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Mongol invasion of Rus (1237–1240)
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