His wife, Aglent Smaragd was mentioned as a living person in 1327, when she resided as a Beguine nun at the Sibylla cloister in Buda. As her brothers, Ladislaus and Aynard were active courtiers even in 1350, it is plausible that Aglent was not the mother of Stephen's four sons: Dominic II, Lawrence, Ladislaus I and Kakas, who all predeceased her. Consequently, Aglent was decades younger than her husband and Stephen had an unidentified first wife before her. Stephen's sons were important lords at the turn of the 13th and 14th centuries; Dominic II was a courtier of Andrew III and was one of the most powerful barons during the era of Interregnum. The Pásztói family ascended from him. Lawrence was killed in the Battle of Lake Hód (near present-day Hódmezővásárhely) in 1282. Ladislaus and Kakas followed their elder brother Dominic's political orientation; Ladislaus was ancestor of the Tari family, while Kakas was killed in the Battle of Rozgony in 1312. Stephen also had a son from his marriage with Aglent: Leustach III died without heirs in the 1340s.