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In page Agnes of Kuenring:

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Around the first year of the affair (ca. 1254–55), Agnes gave birth her first child, a son, named Nicholas, later Duke of Opava.[5] It is known that she bore the King more children, but the exact number is contradictory in sources; it is believed that they had three daughters: Agnes (married Bavor III, Lord of Strakonicz), Elisabeth (married Vikard, Lord of Polna and Burgrave of Brünn) and one unknown daughter (wife of Vok, Lord of Kravaře), and another son, Ješek (d. 26 August 1296) (later Priest at Wysehrad).[citation needed]