Jan I, Prince of Sagan - Pedigree | FamilyCentral
 Abt 1387 - 12 Apr 1439
 Abt 1345 - 14 Mar 1397
 Abt 1365 - 6 Jun 1420
 Abt 1319 - Aft 8 Apr 1369
 Abt 1319 - 16 Feb 1363