Kunigunde was the daughter of Georg von Apfaltern but her mother is unknown. The date and place of her birth have not been found.
Her husband was Sigismund von Lamberg. They were married, but the date and place have not been found. Their five known children were Andreas (?-?), Sigismund (?-?), Georg (?-?), Valentin (?-?) and Barbara (?-?).