Nielsen Hayden genealogy
Ancestors of Euphemia of Silesia and Breslau
1283 - 1347 (~ 69 years)
┌── Boleslaw I of Silesia 
(Aft 1129 - 7 Dec 1201) =>
(Aft 1129 - 7 Dec 1201) => ┌── Henryk I of Silesia (Between 1167 and 1174 - 19 Mar 1238)(m. Abt 1186)
(Between 1167 and 1174 - 19 Mar 1238)(m. Abt 1186) │ └── Christina (Bef 1150 - Between 23 Feb 1204 and 1208)
(Bef 1150 - Between 23 Feb 1204 and 1208) │
┌── Henryk II of Silesia (Between 1196 and 1204 - 9 Apr 1241 Legnica, Lower Silesia, Poland)
(Between 1196 and 1204 - 9 Apr 1241 Legnica, Lower Silesia, Poland) │ (m. Between 1214 and 1218)
│ │
│ │ ┌── Berthold VI von Andechs (1153 - 12 Aug 1204)(m. 1170) =>
(1153 - 12 Aug 1204)(m. 1170) => │ └── St. Hedwig von Meran (Between 1176 and 1180 - 13 Oct 1243)(m. Abt 1186)
(Between 1176 and 1180 - 13 Oct 1243)(m. Abt 1186) │ └── Agnes von Nieder-Lausitz (Abt 1154 - 25 Mar 1195)(m. 1170) =>
(Abt 1154 - 25 Mar 1195)(m. 1170) => │
┌── Boleslaw II of Silesia (Between 1220 and 1225 - Abt 26 Dec 1278)
(Between 1220 and 1225 - Abt 26 Dec 1278) │ (m. Between 8 May 1242 and 18 Oct 1242)
│ │
│ │ ┌── Wladislaw II, King of Bohemia (Abt 1110 - 18 Jan 1175)(m. 1153) =>
(Abt 1110 - 18 Jan 1175)(m. 1153) => │ │ ┌── Przemysl Ottokar I, King of Bohemia (Abt 1155 - 15 Dec 1230)(m. Abt 1198)
(Abt 1155 - 15 Dec 1230)(m. Abt 1198) │ │ │ └── Jutta of Thuringia (m. 1153) =>
(m. 1153) => │ │ │
│ └── Anna of Bohemia (Between 1201 and 1204 Prague, Bohemia - 23 Jun 1265)
(Between 1201 and 1204 Prague, Bohemia - 23 Jun 1265) │ (m. Between 1214 and 1218)
│ │
│ │ ┌── Béla III, King of Hungary, Croatia, Dalmatia, and Rama (Abt 1148 - 18 Apr 1196)
(Abt 1148 - 18 Apr 1196) │ │ │ (m. Abt 1171) =>
│ └── Constance of Hungary ( - 4 Dec 1240)(m. Abt 1198)
( - 4 Dec 1240)(m. Abt 1198) │ └── Anna de Châtillon (1154 - 1184)(m. Abt 1171) =>
(1154 - 1184)(m. Abt 1171) => │
┌── Heinrich V of Silesia (Between 1245 and 1250 - 22 Feb 1296)(m. Between 1277 and 1279)
(Between 1245 and 1250 - 22 Feb 1296)(m. Between 1277 and 1279) │ │
│ │ ┌── Albrecht of Saxony (1100 - 18 Nov 1170)(m. Abt 1125) =>
(1100 - 18 Nov 1170)(m. Abt 1125) => │ │ ┌── Bernhard III of Saxony (1140 - 9 Feb 1212)
(1140 - 9 Feb 1212) │ │ │ └── Sophia von Winzenburg ( - 8 Jun 1160)(m. Abt 1125) =>
( - 8 Jun 1160)(m. Abt 1125) => │ │ │
│ │ ┌── Heinrich I von Anhalt (Abt 1170 - Between 1251 and 1252)(m. Abt 1211)
(Abt 1170 - Between 1251 and 1252)(m. Abt 1211) │ │ │ │
│ │ │ │ ┌── Mieszko III, High Duke of Poland (Abt 1126 - 13 Mar 1202) =>
(Abt 1126 - 13 Mar 1202) => │ │ │ └── Judith of Poland (Abt 1152 - Aft 1201)
(Abt 1152 - Aft 1201) │ │ │ └── Elisabeth of Hungary (Abt 1128 - Bef 1155) =>
(Abt 1128 - Bef 1155) => │ │ │
│ └── Hedwig von Anhalt ( - 21 Dec 1259)(m. Between 8 May 1242 and 18 Oct 1242)
( - 21 Dec 1259)(m. Between 8 May 1242 and 18 Oct 1242) │ │
│ │ ┌── Ludwig II of Thuringia (Abt 1128 - 14 Oct 1172) =>
(Abt 1128 - 14 Oct 1172) => │ │ ┌── Hermann I of Thuringia (Abt 1154 - 25 Apr 1217)
(Abt 1154 - 25 Apr 1217) │ │ │ └── Jutta of Swabia (Abt 1133 - 7 Jul 1191) =>
(Abt 1133 - 7 Jul 1191) => │ │ │
│ └── Irmgard von Thüringen (Abt 1197 - Abt 1244)(m. Abt 1211)
(Abt 1197 - Abt 1244)(m. Abt 1211) │ │
│ │ ┌── Otto I of Bavaria (Abt 1117 - 11 Jul 1183) =>
(Abt 1117 - 11 Jul 1183) => │ └── Sophie of Bavaria (Abt 1172 - 15 Jul 1238)
(Abt 1172 - 15 Jul 1238) │ └── Agnes von Looz (Abt 1150 - 1192) =>
(Abt 1150 - 1192) => │
Euphemia of Silesia and Breslau (Between 1278 and 1283 - 4 Apr 1347)
│
│ ┌── Mieszko III, High Duke of Poland (Abt 1126 - 13 Mar 1202) =>
(Abt 1126 - 13 Mar 1202) => │ ┌── Odon (Between 1141 and 1149 - 20 Apr 1194)(m. Aft 1184)
(Between 1141 and 1149 - 20 Apr 1194)(m. Aft 1184) │ │ └── Elisabeth of Hungary (Abt 1128 - Bef 1155) =>
(Abt 1128 - Bef 1155) => │ │
│ ┌── Wladislaw Odonicz (Abt 1190 - 5 Jun 1239)(m. Between 1218 and 1220)
(Abt 1190 - 5 Jun 1239)(m. Between 1218 and 1220) │ │ │
│ │ │ ┌── Jaroslav Vladimirkovitch (Abt 1135 - 1 Oct 1187) =>
(Abt 1135 - 1 Oct 1187) => │ │ └── Wjatscheslawa Jaroslawna of Halicz ( - Aft 1200)(m. Aft 1184)
( - Aft 1200)(m. Aft 1184) │ │ └── Olga Georgievna of Suzdal ( - Abt 1185) =>
( - Abt 1185) => │ │
│ ┌── Boleslaw (1221 - 7 Apr 1279)(m. 1257)
(1221 - 7 Apr 1279)(m. 1257) │ │ └── Jadwiga ( - 29 Dec 1249)(m. Between 1218 and 1220)
( - 29 Dec 1249)(m. Between 1218 and 1220) │ │
└── Elisabeth von Kalisch (Between 1261 and 1263 - 28 Sep 1304)(m. Between 1277 and 1279)
(Between 1261 and 1263 - 28 Sep 1304)(m. Between 1277 and 1279) │
│ ┌── Béla III, King of Hungary, Croatia, Dalmatia, and Rama (Abt 1148 - 18 Apr 1196)
(Abt 1148 - 18 Apr 1196) │ │ (m. Abt 1171) =>
│ ┌── András II, King of Hungary (1176 - 21 Sep 1235)(m. Bef 1203)
(1176 - 21 Sep 1235)(m. Bef 1203) │ │ └── Anna de Châtillon (1154 - 1184)(m. Abt 1171) =>
(1154 - 1184)(m. Abt 1171) => │ │
│ ┌── Béla IV, King of Hungary (1206 - 3 May 1270)(m. Abt 1218)
(1206 - 3 May 1270)(m. Abt 1218) │ │ │
│ │ │ ┌── Berthold VI von Andechs (1153 - 12 Aug 1204)(m. 1170) =>
(1153 - 12 Aug 1204)(m. 1170) => │ │ └── Gertrud von Meran (Abt 1185 - 28 Sep 1213)(m. Bef 1203)
(Abt 1185 - 28 Sep 1213)(m. Bef 1203) │ │ └── Agnes von Nieder-Lausitz (Abt 1154 - 25 Mar 1195)(m. 1170) =>
(Abt 1154 - 25 Mar 1195)(m. 1170) => │ │
└── Helene of Hungary (Abt 1244 Esztergom, Hungary - 6 Mar 1298 Gniezno, Poland)(m. 1257)
(Abt 1244 Esztergom, Hungary - 6 Mar 1298 Gniezno, Poland)(m. 1257) │
│ ┌── Manuel Laskaris
│ ┌── Theodoros I Komnenos Laskaris, Emperor in Nicea (Abt 1175 - Aug 1222)(m. 1199)
(Abt 1175 - Aug 1222)(m. 1199) │ │ └── Ioanna
│ │
└── Maria Laskarina (Abt 1206 of Nicea, Anatolia - 1270)(m. Abt 1218)
(Abt 1206 of Nicea, Anatolia - 1270)(m. Abt 1218) │
│ ┌── Alexios III Komnenos Angelos, Emperor of Byzantium (Aft 1155 - Aft 1211)
(Aft 1155 - Aft 1211) │ │ (m. 1169) =>
└── Anna Komnena Angelina (Abt 1174 - 1212)(m. 1199)
(Abt 1174 - 1212)(m. 1199) └── Euphrosyne Doukaina Kamaterina (Abt 1155 - Between 1210 and 1211)(m. 1169) =>
(Abt 1155 - Between 1210 and 1211)(m. 1169) =>