Miklós was the son of Jakab Rhédy de Kisrhéde but his mother is unknown. The date and place of his birth have not been found.
His wife was Klára Cheléni de Szentdomokos. They were married, but the date and place have not been found. Their six known children were István (?-?), János (?-?), Sandrin (?-?), Miklós (?-?), Katalin (?-?) and Ilona (?-?).