Apollónia Niczky - Issue with his father

Hello Частный профиль, Maár Péter, Imre Maár

Into Istvan Nagy's book, on Szép's chapter, we can Miklos Szep was married to Apollónia Niczky, daugther of Mihaly Niczky and Margit Beleznay.
However, also in Nagy's book, on Niczky Chapter, there is a Mihaly that existed but nothing about a wife named " Margit Beleznay" nor a daugther named "Apollinia".

Actually, Mihaly is identified as someone without chil nor wife.

Coud you share us your sources to make this link between Apollinia and Mihaly exists ?