Nielsen Hayden genealogy
Ancestors of John II of Hainault
1247 - 1304 (57 years) ┌── Jacques d'Avesnes (1150 - 7 Sep 1191 Arsuf, Palestine)(m. 1180) =>
┌── Bouchard IV d'Avesnes (Abt 1181 - 7 Sep 1244)(m. Bef 23 Jul 1212)
│ └── Adela of Guise (m. 1180) =>
│
┌── John d'Avesnes (Apr 1218 Houffalize, Luxembourg (now Belgium) -
│ 24 Dec 1257 Valenciennes, Nord-Pas-de-Calais, France)(m. 9 Oct 1246)
│ 24 Dec 1257 Valenciennes, Nord-Pas-de-Calais, France)(m. 9 Oct 1246)
│ │
│ │ ┌── Baldwin I of Flanders, Latin Emperor of Constantinople (Jul 1171 - 11 Jul 1205)
│ │ │ (m. 6 Jan 1186) =>
│ └── Margaret II of Flanders (Abt 1202 - 10 Feb 1280 bur.Abbey of Flines, Flines-lez-Raches, Hauts-de-
│ France, France)(m. Bef 23 Jul 1212)
│ France, France)(m. Bef 23 Jul 1212)
│ └── Marie of Champagne (Abt 1174 - 9 Aug 1204)(m. 6 Jan 1186) =>
│
John II of Hainault (1247 - 22 Aug 1304 bur.Church of the Franciscans, Valenciennes, Nord-Pas-de-Calais, France)
│
│ ┌── Willem I of Holland (Abt 1170 - 4 Feb 1222) =>
│ ┌── Floris IV of Holland (24 Jun 1210 - 19 Jul 1234)(m. Aft 5 Nov 1214)
│ │ └── Aleida van Gelre (Abt 1187 - 4 Feb 1218) =>
│ │
└── Adelaide of Holland (Abt 1230 - Between 1 Mar 1284 and 7 Apr 1284)(m. 9 Oct 1246)
│
│ ┌── Henri I of Brabant (Abt 1158 - 5 Sep 1235 Koln, Germany)(m. 1179) =>
└── Machteld of Brabant (Abt 1200 - 21 Dec 1267)(m. Aft 5 Nov 1214)
└── Machtild of Boulogne (Abt 1169 - Between 1210 and 1211 bur.Afflighem Abbey, Brabant, Belgium)
(m. 1179) =>