Eliška was the daughter of unknown parents. The date and place of her birth have not been found.
Her husband was Vilém z Landštejna. They were married, but the date and place have not been found. Their seven known children were Anežka (?->1356), Vítek (?-c1380), Petr (?->1356), Vilém (?-c1360), Jan (?-1389), Ojíř (?-c1365) and Lutold (?-c1382).