who was this king married to?
Agnes of Poitou
Henry III, Holy Roman Emperor
In 1043 Henry married the daughter of duke William V of Aquitaine and duchess Agnes of Burgundy, Agnes of Poitou. 
when did henry iv, holy roman emperor ascend to the throne? 1 April 1084 who was his father? Henry III, Holy Roman Emperor was there any controversy during his crowning? UNANSWERABLE which country did he reign over? Germany, Italy, Burgundy was his father in a conflict with any country? Yes, with Bohemia and Hungary
wiki:18161257
Henry III, Holy Roman Emperor [SEP] Marriage to Agnes of Poitou
In 1043 Henry married the daughter of duke William V of Aquitaine and duchess Agnes of Burgundy, Agnes of Poitou. She resided at the court of her stepfather, Geoffrey Martel, Count of Anjou. The association with this boisterous vassal of the king of France and her consanguinity with Henry (both are descendants of Henry the Fowler) stirred up some consternation among many clerics, who opposed their union. The marriage, however took place anyway and Agnes was crowned queen at Mainz.