Nielsen Hayden genealogy
Aleida van Gelre

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- 1 Aleida van Gelre [1] b. Abt 1187 d. 4 Feb 1218
Willem I b. Abt 1170 d. 4 Feb 1222
- 2 Floris IV [1.1]
b. 24 Jun 1210 d. 19 Jul 1234
Machteld of Brabant b. Abt 1200 d. 21 Dec 1267
- 3 Adelaide of Holland [1.1.1]
b. Abt 1230 d. Between 1 Mar 1284 and 7 Apr 1284
John d'Avesnes b. Apr 1218 d. 24 Dec 1257
- 4 John II of Hainault [1.1.1.1]
b. 1247 d. 22 Aug 1304 [ =>]
- 4 Jean II d'Avesnes [1.1.1.2]
b. 1247 d. 11 Sep 1304 [ =>]
- 4 Guy d'Avesnes, Bishop of Utrecht [1.1.1.3]
b. Abt 1253 d. 28 May 1317 [ =>]
- 4 John II of Hainault [1.1.1.1]
- 3 Margaretha van Holland [1.1.2]
b. Abt 1234 d. 26 Mar 1277
Hermann I von Henneberg b. 1224 d. 18 Dec 1290
- 4 Jutta von Henneberg [1.1.2.1]
d. Bef 13 Sep 1295 [ =>]
- 4 Jutta von Henneberg [1.1.2.1]
- 3 Adelaide of Holland [1.1.1]
- 2 Floris IV [1.1]