[2] After Easter in 853, Burgred married Æthelswith, daughter of Æthelwulf, king of the West Saxons.[1] In 853 Burgred sent messengers to Æthelwulf, king of the West Saxons, seeking his help to subjugate the Welsh, who lived between Mercia and the western sea, as they were rebelling against his rule.[3] After Burgred left, the Vikings appointed a Mercian Ceolwulf to replace him, demanding oaths of loyalty to them.He was buried, according to the Anglo-Saxon Chronicle, "in the church of Sancta Maria, in the school of the English nation" (now Santo Spirito in Sassia) in Rome.[5] In 1998 a hoard with Burgred coins was found by the Birmingham University Field Archaeology Unit near Banbury Castle.