Nielsen Hayden genealogy
Descendants of Margaretha van Holland
Abt 1234 - 1277 (~ 43 years)Father: Floris IV of Holland (24 Jun 1210 - 19 Jul 1234)
Mother: Machteld of Brabant (Abt 1200 - 21 Dec 1267)
Margaretha van Holland (Abt 1234 - 26 Mar 1277)
Hermann I von Henneberg (1224 - 18 Dec 1290)(m. 24 May 1249)
   └─ Jutta von Henneberg ( - Bef 13 Sep 1295)
    Otto V of Brandenburg (Abt 1246 - 3 Jul 1299)(m. 22 Oct 1268)
       ├─ Beatrix of Brandenburg ( - Bef 26 Apr 1316)
       │ Bolko I of Silesia (Between 1252 and 1256 - 9 Nov 1301)(m. 4 Oct 1281)
       │    └─ Beatrix von Schlesien-Glogau (Abt 1290 - 24 Aug 1322 Munich, Bavaria, Germany) =>
       │     + Ludwig IV, Holy Roman Emperor (11 Mar 1282 - 11 Oct 1347 Puch, Fürstenfeldbruck, Bavaria, Germany)
       │     (m. Between Oct 1308 and 1311)
       │     (m. Between Oct 1308 and 1311)
       └─ Hermann of Brandenburg (Abt 1275 - Jan 1308)
        Anna of Austria (Between 1275 and 1280 - 10 Mar 1327 Breslau, Silesia)(m. Sep 1295 Graz, Austria)
           └─ Mechtilde of Brandenburg (Between 1298 and 1300 - Between Jul 1325 and 31 Mar 1329) =>
            + Heinrich II of Silesia (Between 1289 and 1293 - 22 Jan 1342 bur.Zagan, Zagan, Silesia, Poland)
            (m. Between 5 Jan 1310 and 29 Feb 1312)
            (m. Between 5 Jan 1310 and 29 Feb 1312)