Adolf VI, Count of Berg

They had one daughter: In 1212 Adolf took part to the Albigensian Crusade against the Cathars.

Adolf left on 1218 with the Fifth Crusade to Egypt and died on 7 August 1218 of a plague as commander of the Lower-Rhenish and Frisian troops in Damiette, in the delta of the Nile.

Adolf VI, Count of Berg is named Adolf III, Count of Berg in the Netherlands and in Germany Alberic of Troisfontaines (MGH, Scriptores XXIII).

Monatsblatt des Vereins für Landeskunde von Niederösterreich 23 (1952) 111–23.

– Wunder, G. "Die Nichten des Erzbischofs Friedrich von Köln".

– Wunder, G. "Die Verwandtschaft des Erzbischofs Friedrich I. von Köln.

Ein Beitrag zur abendländischen Verflechtung des Hochadels im Mittelalter".