further significant properties in Saxony from his brother William in 1213, Henry ceded the Palatinate to his son Henry the Younger and moved north. After his son's early death the next year, he left his Welf properties to his nephew, William's son Otto the Child, who became the first Duke of Brunswick-Lüneburg in 1235. Henry died in 1227 and is entombed in Brunswick Cathedral. Marriage and children In 1193, Henry married Agnes of Hohenstaufen (1177–1204), daughter of Count Palatine Conrad. They had the following children: Henry VI (1197–1214), married Matilda, daughter of Duke Henry I of Brabant Irmengard (1200–1260), married Margrave Herman V of Baden Agnes (1201–1267), married Otto II of Wittelsbach, Count palatine of the Rhine from 1214, Duke of Bavaria from 1231. Around 1209, he married Agnes of Landsberg (d. 1248), daughter of the Wettin margrave Conrad II of Lusatia. Ancestors References Sources Counts Palatine of the Rhine House of Welf 1170s births 1227 deaths Christians of the Crusade of 1197 Burials at Brunswick Cathedral