Nielsen Hayden genealogy
Descendants of Thomas II de Coucy
- 1253Father: Raoul I de Coucy (1134 - Nov 1191 Acre, Palestine)
Mother: Alix de Dreux (Abt 1156 - Aft 1217)
Thomas II de Coucy ( - Between 1252 and 1253)
Mahaut de Rethel ( - Between 1 Jul 1259 and 19 Jun 1268)(m. 1225)
   ├─ Agnes de Coucy ( - 1277)
   │ Gobert VII ( - Between 24 Aug 1278 and Apr 1280 bur.Verdun, Meuse, France)
   │    └─ Jeanne d'Aspremont-Briey ( - Aft 17 Jan 1321)
   │     Friedrich IV ( - 1316)(m. 1282)
   │         + Sophie von Freiburg ( - Aft 29 Mar 1335)
   ├─ Félicité de Coucy ( - 1307)
   │ Baudouin d'Avesnes (Sep 1219 - 10 Apr 1295)(m. Mar 1256)
   │    └─ Beatrice de Beaumont d'Avesnes (Abt 1258 - 25 Feb 1321)
   │     Henry III of Luxembourg (Abt 1240 - 5 Jun 1288 Worringen, near Koln, Germany)(m. Abt 1260)
   │        └─ Henry VII, Holy Roman Emperor (12 Jul 1274 Valenciennes, Nord-Pas-de-Calais, France -
   │         24 Aug 1313 Buonconvento near Siena, Tuscany, Italy) =>
   │         24 Aug 1313 Buonconvento near Siena, Tuscany, Italy) =>
   │         + Margareta of Brabant (4 Oct 1276 - 14 Dec 1311 Genoa, Liguria, Italy)
   │         (m. 9 Jun 1292 Tervuren, Brabant)
   │         (m. 9 Jun 1292 Tervuren, Brabant)
   └─ Yolande de Coucy
    Arnold (Abt 1215 - Aft 1265)
       └─ Mathilde de Tournai ( - 1311)
        Jean III ( - Abt 1276)
            + Beatrix de Clermont (m. Bef Nov 1279)