http://genealogy.euweb.cz/hung/apafi1.html#J

Apafi family

N from Becsegergely family had issue:

• A1. Ant
  • B1. Ant, fl 1199-1217
    • C1. János
      • D1. Apa, fl 1258-66
        • E1. Miklós
        • E2. Gergely, fl 1282-1316
        • E3. Jakab, fl 1282-1329; he was ancestor of Bethlen de Bethlen family, for which see HERE

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http://genealogy.euweb.cz/hung/bethlen2.html

Bethlen de Bethlen family

Jakab Bethlen de Bethlen, fl 1282-1329, had issue:

• A1. András, fl 1329-1362
  • ...
• A2. Jakab "Nagy", fl 1329-67
• A3. János (Iván), fl 1329-49
  • ...
• A4. Apa, fl 1329-36
• A5. Dénes, fl 1329-57