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Henry IV the Faithful Piast of Glogow, Duke of Zagan, Duke of Glogow, was born circa 1292 to Henry III of Glogow (c1255-1309) and Mechthild von Braunschweig-Lüneburg (c1275-1318) and died 22 January 1342 of unspecified causes. He married Mathilde von Brandenburg (1296-c1323) 5 January 1310 JL . Notable ancestors include Henry II of England (1133-1189), William I of England (1027-1087), Charlemagne (747-814), Hugh Capet (c940-996), Alfred the Great (849-899). Ancestors are from France, the United Kingdom, Germany, the Czech Republic, Russia, Ukraine, Belgium, the Netherlands, Italy, the Byzantine Empire, Sweden, Belarus.


Offspring of Henry IV of Glogow and Mathilde von Brandenburg (1296-c1323)
Name Birth Death Joined with
Hedwig of Zagan (c1316-1348)
Henry V of Zagan (c1319-c1369) 1319 4 August 1369 Anna of Płock (1324-1363)

Salome of Zagan (aft1320-c1359) 1320 12 June 1359 Heinrich II. Reuß von Plauen (bef1289-1350)

Agnes of Zagan (c1321-1362) 1321 1362 Leszek of Racibórz (c1292-1336)
Louis I of Legnica (c1321-1398)


Common ancestors of Henry IV of Glogow (c1292-1342) and Mathilde von Brandenburg (1296-c1323)

  1. Ada van Holland (c1163-1205)
  2. Albrecht II. von Brandenburg (c1150-1220)
  3. Constance of Hungary (c1180-1240)
  4. Elisabeth of Poland (1152-1209)
  5. Konrad II. von Lausitz (c1159-1210)
  6. Mechthild von Lausitz (c1185-1255)
  7. Otto I von Brandenburg (c1127-1184)
  8. Ottokar of Bohemia (c1155-1230)

Namesakes of Henry IV of Glogow (c1292-1342)

 Birth placeDeath placeFatherMotherJoined with
Henry IV of Glogow (c1292-1342)Henry III of Glogow (c1255-1309)Mechthild von Braunschweig-Lüneburg (c1275-1318)Mathilde von Brandenburg (1296-c1323)
Henry IX of Lubin (1369-c1420)Henry VII of Brzeg (c1344-1399)Helene von Orlamünde (c1330-1369)Anna of Cieszyn (bef1374-c1415)
Henry I the Bearded of Poland (c1168-1238)Bolesław I the Tall of Poland (1127-1201)Christina Unknown (?-c1206)Hedwig von Andechs (1174-1243)
Henry V of Zagan (c1319-c1369)Henry IV of Glogow (c1292-1342)Mathilde von Brandenburg (1296-c1323)Anna of Płock (1324-1363)
Henry II of Swidnica (c1316-1345)Bernard of Swidnica (c1291-1326)Kunigunde of Poland (c1298-1331)Katherine of Hungary (c1315-1355)
Henry III the White of Poland (c1228-1266)Henry II the Pious of Poland (c1196-1241)Anne of Bohemia (1204-1265)Judith of Masovia (c1225-c1260) + Helena von Sachsen (1247-1309)
Henry VIII of Zagan (c1357-1397)Henry V of Zagan (c1319-c1369)Anna of Płock (1324-1363)Katharina of Opole (c1367-1420)
Henry II the Pious of Poland (c1196-1241)Legnickie Pole, PolandHenry I the Bearded of Poland (c1168-1238)Hedwig von Andechs (1174-1243)Anne of Bohemia (1204-1265)
Henry IV Probus of Poland (c1258-1290)Henry III the White of Poland (c1228-1266)Judith of Masovia (c1225-c1260)Constance of Opole (?-?) + Matilda von Brandenburg (c1270-bef1298)
Henry V the Fat of Poland (c1248-1296)Bolesław II the Bald of Poland (c1223-1278)Hedwig von Anhalt (c1228-1259)Elisabeth of Poznań (c1262-1304)
Henry III of Glogow (c1255-1309)Konrad I of Glogow (c1230-1274)Salomea of Poznań (c1225-c1267)Mechthild von Braunschweig-Lüneburg (c1275-1318)
Henry VII of Brzeg (c1344-1399)Louis I of Legnica (c1321-1398)Agnes of Zagan (c1321-1362)Helene von Orlamünde (c1330-1369) + Margaret of Masovia (bef1358-1392)

Footnotes (including sources)