Mariya Mstislavna of Smolensk was born 1180 to Mstislav III Romanovich of Kiev (c1160-1223) and died 24 January 1221 of unspecified causes. She married Konstantin Vsevolodovich of Rostov (1186-1218) 15 October 1196 JL .
Maria Mstislavna  (in monasticism - Agafia) - daughter of Mstislav III Romanovich the elder, Prince of Smolensk .
In 1196 she married in Vladimir the ten-year old Konstantin Vsevolodovich, the eldest son of the Grand Princes of Vladimir-Suzdal Vladimir Yuryevich. During their marriage they had three sons:
In 1218 Konstantin Vsevolodovich died, after which she took a veil in a nun, taking the name Agafia. She died on January 24, 1220, and was buried in the Dormition Cathedral of Rostov.
|Offspring of Mariya Mstislavna of Smolensk and Konstantin Vsevolodovich of Rostov (1186-1218)
|Vasilko Konstantinovich of Rostov (1209-1238)
||Rostov, Rostov Rayon, Yaroslavl Oblast, Russia
||4 March 1238 Noginsk Rayon, Moscow Oblast, Russia
||Mariya Mikhailovna of Chernigov (c1211-1271)|
|Vsevolod Konstantinovich of Yaroslavl (1210-1238)
||18 June 1210 Rostov, Rostov Rayon, Yaroslavl Oblast, Russia
||4 March 1238 Russia
||Olga Olgovna of Kursk (c1211-c1270)|
|Vladimir Konstantinovich of Uglich (1214-1249)
||27 December 1249 Vladimir, Vladimir Oblast, Russia
||Yevdokiya Ingvarevna of Ryazan (c1216-1278)