Stephen V (Istvan) of Hungary
Stephen V (Istvan) of was born in 1239 in Budapest, Hungary.  He died at the age of 33 in 1272 in Budapest, Hungary.

 Elizabeth of Kumens
Elizabeth of was born before 1245.  She died after 1258.

 Maria of Hungary
Maria of was born about 1258.  She died on March 25th, 1323.