Dmitri Mstislavich of Kozelsk (c1185-1223)

Dmitry (Vasilko ) Mstislavich (c1185-31 May 1223) - Prince of Kozelsk 1216 / 1219, [[Mstislav Svyatoslavich of Chernigov (c1162-1223)|Mstislav Svyatoslavich] of Chernigov] from his marriage to Princess Martha Iasi.

Biography
The exact year of Dmitri's birth is unknown. In the annals his name is not mentioned, however he appears in the Synodics of Lyubetsk (No. 34 in Zotov [3] ), Yelets and the north Synodics [2]. Tatishchev on the basis of unknown sources called him Vasilko [4]. Voitovich suggested that Vasilko is a personal name of the prince, and Dmitri is his baptismal name [5].

In the annals, Dmitri is mentioned only once. Together with his father, who was one of the commanders of an army of several Russian principalities, he participated on May 31, 1223 in the [Battle of the Kalka River (1223) against the Mongols. However, the Russian army was defeated. During the disorderly flight many princes were killed. Among them was Dmitri along with his father [2].

N.A. Baumgarten, on the basis of the Lyubetskii synodik, believed that Dmitri was a prince of Chernigov [6]. However, his position was not supported by other researchers. Voytovich believes that after his father became Chernigov prince, Dmitry received the Principality of Kozedlsk [5].

Family and children
According to the Lubets synodik, Dmitri's wife was called Mamelfa [3]. His children were


 * Mikhail. He is not mentioned in the annals, however his name is in the Lubeck synodik (No. 35), where he is called the Grand Prince of Chernigov [3].
 * Fyodor . He is not mentioned in the annals, however his name is in the Lubeck synodik (No. 35), where he is called the Grand Prince of Chernigov [3