Editing 1051 (section)

==== Continental Europe ====
* Spring &ndash; [[William the Conqueror|William of Normandy]] consolidates his power in [[Duchy of Normandy|Normandy]]. He fights over the control of [[Maine (province)|Maine]] (after the death of Count [[Hugh IV, Count of Maine|Hugh IV]]), and lays [[siege]] to the fortresses of [[Alençon]] and [[Domfront, Orne|Domfront]] (Western [[France]]). 
* [[May 19]] &ndash; King [[Henry I of France]] marries [[Anne of Kiev]] at the cathedral of [[Reims]]. William of Normandy marries [[Matilda of Flanders]], daughter of Count [[Baldwin V, count of Flanders|Baldwin V]], which Henry sees as a threat to his throne.<ref>Jim Bradbury, ''The Capetians: The History of a Dynasty'', pp. 106–108.</ref>
* Summer &ndash; [[Drogo of Hauteville]], count of [[County of Apulia and Calabria|Apulia and Calabria]], meets [[Pope Leo IX]] in southern [[Kingdom of Italy (Holy Roman Empire)|Italy]] – who has been sent by [[Henry III, Holy Roman Emperor|Emperor Henry III]] (the Black) to re-establish the "freedom of the [[Catholic Church]]". Drogo is forced to promise Pope Leo to stop the [[Normans]] from pillaging the Lombard countryside. On his way back (August 10), Drogo is assassinated near [[Bovino]] by a Byzantine conspiracy.
* Autumn &ndash; [[Battle of Vértes]]: [[Henry III, Holy Roman Emperor]] invades the [[Kingdom of Hungary (1000–1301)|Kingdom of Hungary]], and is utterly defeated by [[Andrew I of Hungary]].