http://fmg.ac/Projects/MedLands/HUNGARY.htm#_Toc146273223

BÉLA, son of ANDRÁS II King of Hungary & his first wife Gertrud von Andechs-Merano (Nov 1206-Margaret Island, near Buda 2/3 May 1270, bur Esztergom). ... He succeeded his father in 1235 as BÉLA IV King of Hungary. ... m (1218) MARIA Laskarina, daughter of THEODOROS Laskaris Emperor in Nikaia & his first wife Anna Angelina (-16 or 24 Jul 1270, bur Esztergom). ... King Béla IV & his wife had ten children:

• 4. ANNA [Agnes] ([1226/27]-). Her parentage and marriage are indicated by Georgius Akropolites who names "Rosum Urum…Ungariæ regis generum" as father-in-law of "Bulgarorum…princeps"[937]. The name of the wife of Rostislav is confirmed by the Annales Polonorum recording the marriage in 1265 of their daughter Gryfina, in a later passage specifying that she was daughter of "ducis Roczislay et…Anna"[938]. A charter dated 15 Jul 1264 records the confirmation by "ipsius patris regis Belæ IV" of a donation by "Agnes, viduæ post Radislaum ducem Galitiæ, ducissæ Galitiæ, de Bosna et de Mazo, ac Michaeli et Belæ natis eius"[939]. Baumgarten names the wife of Prince Rostislav and gives her origin but only cites one secondary source in support[940]. m (1243) ROSTISLAV Mikhailovich ex-Prince of Galich, son of MIKHAIL Vsevolodich Grand Prince of Kiev & his wife Maria Romanovna of Galich ([1225]-1263). After the Mongol invasion, he sought refuge with Béla IV King of Hungary, married the king's daughter, and was appointed Ban of Mačva. He assumed the title ROSTISLAV Tsar of the Bulgarians, and was recognised as such by Hungary[941].

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http://en.wikipedia.org/wiki/Anna_of_Hungary_(b.1226)

http://hu.wikipedia.org/wiki/Anna_magyar_hercegn%C5%91

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Rostislav Mikhailovich

From Wikipedia, the free encyclopedia

Marriage and children

1. 1243: Anna of Hungary (c. 1226 - after 1274), daughter of King Béla IV of Hungary and his wife, Maria Laskarina[2][4]

Duke Michael of Bosnia (? - 1271)[4]

Duke Béla of Mačva (? - November, 1272)[4]

Unnamed daughter (perhaps Anna)[2], wife firstly of Tsar Michael Asen I of Bulgaria, secondly of Tsar Koloman II of Bulgaria[6]

Kunigunda of Slavonia (1245-September 9, 1285), wife firstly of King Otakar II of Bohemia, and secondly of Zaviš von Falkenstein-Rosenberg[2]

Gryfina (? - May 26, 1303/1309), wife of Prince Leszek II of Cracow[2]