Karoly Akiva Mannheimer

There is a marriage record on JewishGen for his son David in Eperjes. The marriage record has the groom's father as Herman (Chaim Tzvi). This is an error, his father was Akiva/Kobi/Jakob. I've seen David's birth record which gives his parents as Kobi Mannheimer and Irma Brach. I've seen Irma's death record and marriage record and both confirm that her husband was Akiva/Kobi/Jakob and not his father Herman. The error may arise from the fact that Herman (Chaim Tzvi) Mannheimer was married (2nd mar for both) to Irma's mother. I've seen that marriage record too. R. Just