_Albert I ASCANIA ____________________+
| (1175 - 1260) m 1247
_John I ASCANIA ____________________|
| (1249 - 1285) |
| |_Helen of WELF _______________________+
| (1231 - 1273) m 1247
_Albert III ASCANIA __|
| (1281 - 1308) m 1302 |
| | _Birger Magnusson BJÄLBO ____________+
| | | (1200 - 1266)
| |_Ingeborg Birgersdotter of BJÄLBO _|
| (1253 - 1302) |
| |_Ingeborg Eriksdotter of ERIC ________+
| (1212 - 1254)
|
|--Eric ASCANIA
| (.... - 1338)
| _Otto III ASCANIA ____________________+
| | (1215 - 1267)
| _Albert III ASCANIA ________________|
| | (1250 - 1300) |
| | |_Beatrice of PŘEMYSLID ______________+
| | (1225 - 1290)
|_Margaret of ASCANIA _|
(1270 - 1315) m 1302 |
| _Christopher I Valdemarsen ESTRIDSEN _+
| | (1219 - 1259)
|_Matilda of ESTRIDSEN ______________|
(1250 - 1299) |
|_Margaret of SOBIESLAW _______________
(1230 - 1282)