6641250. Living [Parents]
6661852. Jan I van Avesnes 1 was born in Apr 1218 in Houffalize, Henegouwen, Belgium. He died on 24 Dec 1257. He was buried in Valenciennes. He married Aleida van Holland in Sep 1246.
[Notes]
6661853. Aleida van Holland 1 died about Apr 1218. She was buried in Valenciennes. [Parents]
[Notes]
6668544. Living [Parents]
6676480. Derk van Keppel is printed as #3334272.
6676481. Beatrix van Meurs Gravin is printed as #3334273.