Nielsen Hayden genealogy
Descendants of Baudouin d'Avesnes
1219 - 1295 (~ 75 years)Father: Bouchard IV d'Avesnes (Abt 1181 - 7 Sep 1244)
Mother: Margaret II of Flanders (Abt 1202 - 10 Feb 1280 bur.Abbey of Flines, Flines-lez-Raches, Hauts-de-France, France)
Baudouin d'Avesnes (Sep 1219 - 10 Apr 1295)
Félicité de Coucy ( - 1307)(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)
           └─ John, King of Bohemia (10 Aug 1296 Luxemburg -
            26 Aug 1346 Crécy-in-Ponthieu, Somme, Hauts-de-France, France) =>
            26 Aug 1346 Crécy-in-Ponthieu, Somme, Hauts-de-France, France) =>
            + Elizabeth, Queen of Bohemia (20 Jan 1292 Prague, Bohemia - 28 Sep 1330 Vyšehrad, Prague, Bohemia)
            (m. 30 Aug 1310 Speyer Cathedral, Speyer, Germany)
            (m. 30 Aug 1310 Speyer Cathedral, Speyer, Germany)