Vem gifte sig med Beatrix van Avesnes?

Beatrix van Avesnes (circa 1240 - Valenciennes, 25 februari 1321) was van 1281 tot 1288 gravin van Luxemburg. Ze behoorde tot het huis Avesnes.

Henry VI (c. 1240 – 5 June 1288) was Count of Luxembourg and Arlon from the death of his father, Henry V the Blond, in 1281 until his own death at the battle of Worringen, seven years later, when he was succeeded by his son, Henry VII.