Maria-Helena Mstyslavna (? – after 1227) – younger daughter of Prince Mstyslav the Lucky of Halych, descendant of Grand Prince of Kyiv Volodymyr Monomakh.
In 1226 Prince Mstyslav married Maria-Helena to András (Andrew), son of King of Hungary András II from the famous Árpád dynasty. It is interesting to note that András II himself was a descendant of a Rus Princess – a grandson of Euphrosyne from the Monomakh family.
In 1226 Mstyslav entrusted his son-in-law with the government of Peremyshl, and in 1227 of Halych, thus ceding all power over the Halych Principality.
Portrait (imaginary) of Maria-Olena Mstyslavna.
By O. Sleta. Oil on canvas. 90×70. 2008