'Brandenburg1'Index links to: Lead / Letter
Families covered: Princes of Anhalt, Counts of Ballenstedt, Margraves of Brandenburg, Dukes of Saxony

Adalbert or Albert of Ballenstedt
m. Hidda (dau of Hodo, Margrave of the Nordmark)
1. Esiko, Count in Schabengau (d c1060)
  m. Mathilde of Swabia (d 1031/2)
A. Otto, Count of Ballenstedt, later Duke of Saxony (d 09.02.1123)
  The continuation shows an alternative ancestry for Otto, as provided by ROYL. The alternative ancestry (on Ascania1) is provided even though it might be completely erroneous (perhaps the result of a later descendant who was keen to have a long pedigree) in case it is later found that the above Adalbert was connected to the family on Ascania1.
  m. Eilkia of Saxony (b 1080, d 16.01.1142, dau of Magnus, Duke of Saxony)
  i. Albert I 'the Bear', Count of Ballenstedt, Duke of Saxony, Margrave of Brandenburg (d 18.11.1170)
  m. (1124) Sofie von Winzenburg (d 25.03.1160, dau of Otto, Count of Reinech)
  a. Otto I, Margrave of Brandenburg (b c1127, d 07.03.1184)
  m1. (06.11.1148) Judith of Poland (d by 1175, dau of Boleslaw III, Count of Poland, Duke of Pomerania)
  (1) Otto II, Margrave of Brandenburg (dsp 1205)
  (2) Albert II, Margrave of Brandenburg (b c1174, d 25.02.1220)
  m. (07.1205) Mathilde of Landsberg (d 1255, dau of Conrad, Margrave of Lausitz)
(A) John I, Margrave of Brandenburg (d 1266/7)
  m1. (c1234) Sofie of Denmark (b 1217, d 02.11.1247, dau of Waldemar II, King of Denmark)
  (i)+ issue
  m2. (c1255) Jutta of Saxony (d 23.12.1287, dau of Albrecht I, Duke of Saxony) @1@ below
  (ii) Henry I, Margrave of Brandenburg (b 1260, d 14.02.1318)
  ROYL shows this Henry as son rather than younger brother of Conrad. We follow GenEU.
  m. Agnes of Bavaria (d 22.07.1345, dau of Ludwig II, Duke of Upper Bavaria)
  (a) Sofie of Brandenburg (b 1300, d c1356) S
  m. Magnus I, Duke of Braunschweig-Gottingen (b c1304, d 1369) S
(b)+ other issue
  (iii)+ other issue including Conrad
  (B) Otto III, Margrave of Brandenburg (d 09.10.1267) had issue
  m. (by 1243) Beatrix of Bohemia (d 25.05.1286)
  (C) Elisabeth of Brandenburg (d 1237)
  m. Henry, Landgrave of Thuringia (d 1247)
  (D) Mathilde of Brandenburg (d 10.06.1261) HS
  m. (1228) Otto 'Puer', Duke of Luneburg and Braunschweig (b 1204, d 1252) HS
  m2. (1176) Adelaide of Holland (d after 1205, dau of Floris III, Count of Holland)
  b. Bernard, Count of Anhalt, Duke of Saxony (b 1140, d 1212)
  m. Judith of Poland
  (1) Henry I, Prince of Anhalt (b c1170, d 1252)
  m. Irmgard of Thuringia (d c1244, dau of Hermann I, Landgrave of Thuringia)
  (A) Bernard I, Prince of Anhalt-Bernburg (d 1286/7)
  m. (03.02.1258) Sofie of Denmark
(i) Bernard II, Prince of Anhalt-Bernburg (b c1260, d after 11.1323)
  m. Helene of Rugen (b c1270, d 19.08.1315)
  (a) Bernard III, Prince of Anhalt-Bernburg (b c1300, d 20.08.1348)
  m1. Agnes of Sachsen-Wittenberg (d 04.01.1338)
  ((1))+ issue
  m2. Mathilde of Anhalt (dau of Albrecht I, Prince of Anhalt) @2@ below
  ((2)) Katharina of Anhalt (b c1330, d 30.01.1390) S
  m1. Magnus II, Duke of Braunschweig-Luneburg (b c1328, d 26.07.1373) S
  m2. (11.05.1374) Albrecht III, Duke of Saxe-Wittenberg (d 1385)
  ((3))+ other issue
  m3. (1339) Mathilde of Braunschweig
(B) Siegfried I, Count of Anhalt (d after 25.03.1298)
  m. (before 17.10.1259) Katharina of Sweden
  (i) Albrecht I, Prince of Anhalt (d 1316/7)
  m1. Liutgard of Holstein (d after 28.02.1289)
  m2. (1300) Agnes of Brandenburg (d 1329)
  Not known which wife was mother of ...
  (a) Mathilde of Anhalt S
  m. Bernard III, Prince of Anhalt-Bernburg (b c1300, d 20.08.1348) @2@ above S
  (b)+ other issue
  (C) Jutta of Anhalt S
  m. (1231) Nicholas of Rostock, Prince of Werle (d 1277) S
(D)+ other issue
  (2) Albrecht I, Duke of Saxony (d 1260)
  m1. (1222) Agnes of Austria (d 29.08.1226)
  m2. (after 1229) Agnes of Thuringia (d before 1247)
  (A) Jutta of Saxony (d 23.12.1287) S
  m. (c1255) John I, Margrave of Brandenburg (d 1266/7) @1@ above S
  m3. (1247/8) Helene of Braunschweig-Luneburg (d 1273, dau of Otto I, Duke of Braunschweig and Luneburg)
(B) John I, Duke of Saxe-Lauenburg (d 30.07.1286)
  m. Ingeburg of Sweden (d 30.06.1302)
  (i) Erich I, Duke of Saxe-Lauenburg (d 1361)
  m. (1316) Elisabeth of Pomerania (dau of Bogislaw IV, Duke of Pomerania)
  (a) Erich II, Duke of Saxe-Lauenburg (d 1369)
  m. (by 1349) Agnes of Holstein (d 1386, dau of John III, Count of Holstein)
((1)) Erich III/IV, Duke of Saxe-Lauenburg (b 1354, d 21.06.1412)
  m. (1373) Sophie of Braunschweig (dau of Magnus II, Duke of Braunschweig-Luneburg)
  ((A)) Bernhard II, Duke of Saxe-Lauenburg (d 16.07.1463)
  m. (1428/9) Adelheid of Pomerania (b 1410, d after 1445, dau of Bogislaw, Duke of Pomerania-Stargard)
((i)) John V, Duke of Saxe-Lauenburg (b 18.07.1439, d 15.08.1507)
  m. (12.02.1464) Dorothea of Brandenburg (b 1446, d 1519)
  ((a)) Magnus I, Duke of Saxe-Lauenburg (d 01.08.1543)
  m. (11.1509) Katharina of Braunschweig-Wolfenbuttel (b 1488, d 29.06.1563)
  (((1))) Franz I, Duke of Saxe-Lauenburg had issue
(((2))) Dorothea of Saxe-Lauenburg (b 09.07.1511, d 07.10.1571 S
  m. (29.10.1525) Christian III, King of Denmark and Norway (b 1503, d 1559) S
  (((3)))+ other issue
  ((B)) Katharina of Saxe-Lauenburg S
  m1. John VIII of Mecklenberg-Werl (d 1414)
  m2. (1416) Johann IV, Duke of Mecklenburg-Schwerin (b c1365, d 16.10.1422) S
  ((C)) Sophie of Saxe-Lauenburg (b c1395, d 1462) S
m. (1420) Wartislaw IX, Duke of Pomerania-Wolgast (d 17.04.1457) S
  ((D))+ other issue
  (ii)+ other issue
  (C) Albrecht II, Duke of Saxe-Wittenberg, Elector of Saxony (d 25.08.1298)
  m. (1273) Agnes of Habsburg (d 11.10.1322, dau of Emperor Rudolf of Habsburg)
  (i) Anna of Saxe-Wittenberg (d 1327)
  m1. Frederick, Margrave of Meissen (b 1293, d 1315) S
  m2. (1315) Henry II 'the Lion', Prince of Mecklenburg (b 1267, d 21.01.1329) S
  (ii)+ other issue
  (D) Helen of Saxony (d 1309) S
  m1. Henry III, Duke of Breslau (d 1266)
  m2. (1275) Frederick III, Burgrave of Nurnberg (d 1297) S
  c.+ other issue

Main source(s): GenEU (Ascania1, 2, 4), ROYL (table CCLVII)
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