Nielsen Hayden genealogy
Ancestors of Boleslaw III of Silesia
1291 - 1352 (61 years) ┌── Henryk II of Silesia (Between 1196 and 1204 - 9 Apr 1241 Legnica, Lower Silesia, Poland)
│ (m. Between 1214 and 1218) =>
┌── Boleslaw II of Silesia (Between 1220 and 1225 - Abt 26 Dec 1278)
│ (m. Between 8 May 1242 and 18 Oct 1242)
│ └── Anna of Bohemia (Between 1201 and 1204 Prague, Bohemia - 23 Jun 1265)
│ (m. Between 1214 and 1218) =>
│
┌── Heinrich V of Silesia (Between 1245 and 1250 - 22 Feb 1296)(m. Between 1277 and 1279)
│ │
│ │ ┌── Heinrich I von Anhalt (Abt 1170 - Between 1251 and 1252)(m. Abt 1211) =>
│ └── Hedwig von Anhalt ( - 21 Dec 1259)(m. Between 8 May 1242 and 18 Oct 1242)
│ └── Irmgard von Thüringen (Abt 1197 - Abt 1244)(m. Abt 1211) =>
│
Boleslaw III of Silesia (23 Mar 1291 - 20 Apr 1352 bur.Lubiaz, Lower Silesia, Poland)
│
│ ┌── Wladislaw Odonicz (Abt 1190 - 5 Jun 1239)(m. Between 1218 and 1220) =>
│ ┌── Boleslaw (1221 - 7 Apr 1279)(m. 1257)
│ │ └── Jadwiga ( - 29 Dec 1249)(m. Between 1218 and 1220)
│ │
└── Elisabeth von Kalisch (Between 1261 and 1263 - 28 Sep 1304)(m. Between 1277 and 1279)
│
│ ┌── Béla IV, King of Hungary (1206 - 3 May 1270)(m. Abt 1218) =>
└── Helene of Hungary (Abt 1244 Esztergom, Hungary - 6 Mar 1298 Gniezno, Poland)(m. 1257)
└── Maria Laskarina (Abt 1206 of Nicea, Anatolia - 1270)(m. Abt 1218) =>