Nielsen Hayden genealogy
Ancestors of Mechtilde of Brandenburg
1300 - 1329 (~ 27 years) ┌── Otto I of Brandenburg (Abt 21 Jun 1126 - 7 Mar 1184) =>
┌── Albrecht II of Brandenburg (Abt 1177 - 25 Feb 1220)(m. Aug 1205)
│ └── Adelheid
│
┌── Otto III of Brandenburg (Abt 1215 - 9 Oct 1267)(m. Jan 1243)
│ │
│ │ ┌── Konrad von Nieder-Lausitz (Abt 1156 - 6 May 1210)(m. Aft 29 Jan 1180) =>
│ └── Mathilde von Nieder-Lausitz ( - 1255)(m. Aug 1205)
│ └── Elisabeth of Poland ( - 2 Apr 1209)(m. Aft 29 Jan 1180) =>
│
┌── Otto V of Brandenburg (Abt 1246 - 3 Jul 1299)(m. 22 Oct 1268)
│ │
│ │ ┌── Przemysl Ottokar I, King of Bohemia (Abt 1155 - 15 Dec 1230)(m. Abt 1198) =>
│ │ ┌── Wenceslas I, King of Bohemia (1205 - 22 Sep 1253)(m. 1224)
│ │ │ └── Constance of Hungary ( - 4 Dec 1240)(m. Abt 1198) =>
│ │ │
│ └── Beatrix of Bohemia ( - 25 May 1286)(m. Jan 1243)
│ │
│ │ ┌── Philip II, King of Germany (1177 - 21 Jun 1208 Bamberg, Bayern, Germany)
│ │ │ (m. 25 May 1197) =>
│ └── Kunigunde von Hohenstaufen (Between Jan 1202 and Mar 1202 -
│ 13 Sep 1248 bur.St. Veit, Prague, Bohemia)(m. 1224)
│ 13 Sep 1248 bur.St. Veit, Prague, Bohemia)(m. 1224)
│ └── Irene Angelina (Abt 1181 Constantinople -
│ 27 Aug 1208 Hohenstaufen Castle, Bavaria)(m. 25 May 1197) =>
│ 27 Aug 1208 Hohenstaufen Castle, Bavaria)(m. 25 May 1197) =>
│
┌── Hermann of Brandenburg (Abt 1275 - Jan 1308)(m. Sep 1295 Graz, Austria)
│ │
│ │ ┌── Poppo VI von Henneberg ( - 14 Sep 1190) =>
│ │ ┌── Poppo VII von Henneberg ( - 21 Mar 1245)(m. 3 Jan 1223 Leipzig, Saxony, Germany)
│ │ │ └── Sophie von Andechs ( - 2 Jan 1218) =>
│ │ │
│ │ ┌── Hermann I von Henneberg (1224 - 18 Dec 1290)(m. 24 May 1249)
│ │ │ │
│ │ │ │ ┌── Hermann I of Thuringia (Abt 1154 - 25 Apr 1217)(m. Abt 1182) =>
│ │ │ └── Jutta of Thuringia (Abt 1183 - 6 Aug 1235)(m. 3 Jan 1223 Leipzig, Saxony, Germany)
│ │ │ └── Sophie von Sommerschenburg ( - 1189)(m. Abt 1182) =>
│ │ │
│ └── Jutta von Henneberg ( - Bef 13 Sep 1295)(m. 22 Oct 1268)
│ │
│ │ ┌── 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) =>
│ │ │
│ └── Margaretha van Holland (Abt 1234 - 26 Mar 1277)(m. 24 May 1249)
│ │
│ │ ┌── 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) =>
│ Between 1210 and 1211 bur.Afflighem Abbey, Brabant, Belgium)(m. 1179) =>
│
Mechtilde of Brandenburg (Between 1298 and 1300 - Between Jul 1325 and 31 Mar 1329)
│
│ ┌── Rudolf II von Habsburg (Abt 1167 - Bef 10 Apr 1232) =>
│ ┌── Albrecht IV von Habsburg (Abt 1188 - 22 Nov 1240 near Ascalon, Palestine)(m. 1217)
│ │ └── Agnes ( - Bef 10 Mar 1232)
│ │
│ ┌── Rudolf IV von Habsburg (1 May 1218 - 15 Jul 1291)(m. 1245)
│ │ │
│ │ └── Heilwig von Kyburg ( - 30 Apr 1260)(m. 1217)
│ │ └── Anna von Zähringen =>
│ │
│ ┌── Albrecht I (Jul 1255 - 1 May 1308)(m. 1274 Vienna, Austria)
│ │ │
│ │ │ ┌── Burchard IV von Zollern ( - Bef 1225) =>
│ │ │ ┌── Burchard V von Hohenberg ( - 14 Jul 1253)
│ │ └── Gertrude von Hohenberg (1225 - 16 Feb 1281)(m. 1245)
│ │ │
│ │ │ ┌── Rudolf II von Tübingen (Abt 1182 - Aft 13 May 1248) =>
│ │ └── Mechtild von Tübingen
│ │ └── (Unknown) von Ronsberg =>
│ │
└── Anna of Austria (Between 1275 and 1280 - 10 Mar 1327 Breslau, Silesia)(m. Sep 1295 Graz, Austria)
│
│ ┌── Engelbert III (Abt 1140 - Abt 1220) =>
│ ┌── Meinhard III-I von Tirol (Bef 17 Jan 1194 - 22 Jul 1258)(m. Bef 29 Sep 1237)
│ │ └── Mathilde von Andechs ( - 27 Jan 1245) =>
│ │
│ ┌── Meinhard V-IV-II von Tirol (Abt 1238 - 1 Nov 1295)(m. 6 Oct 1259)
│ │ │
│ │ │ ┌── Adalbert III (Abt 1180 - 22 Jul 1253)(m. Abt 1211) =>
│ │ └── Adelheid ( - 26 May 1279)(m. Bef 29 Sep 1237)
│ │ └── Uta von Frontenhausen ( - 1254)(m. Abt 1211) =>
│ │
└── Elisabeth von Tirol (Bef 1262 - 28 Oct 1313)(m. 1274 Vienna, Austria)
│
│ ┌── Ludwig I of Bavaria (Kelheim, Bavaria, Germany;23 Dec 1174 - 15 Sep 1231)
│ │ (m. Oct 1204 Kelheim, Bavaria, Germany) =>
│ ┌── Otto II of Bavaria (7 Apr 1206 Kelheim, Bavaria, Germany -
│ │ 29 Nov 1253 Landshut, Bavaria, Germany)
│ │ 29 Nov 1253 Landshut, Bavaria, Germany)
│ │ └── Ludmilla of Bohemia (1170 - 5 Aug 1240 Landshut, Bavaria, Germany)
│ │ (m. Oct 1204 Kelheim, Bavaria, Germany) =>
│ │
└── Elisabeth of Bavaria (Abt 1227 - 9 Oct 1273)(m. 6 Oct 1259)
│
│ ┌── Heinrich I of Rhein (Abt 1173 - 28 Apr 1227)(m. Jan 1194) =>
└── Agnes (Abt 1201 - 16 Aug 1267 Munich, Bavaria, Germany)
└── Agnes von Hohenstaufen (1176 - 9 May 1204)(m. Jan 1194) =>