¿Quién se casó con Anna?

Duke Fyodor Rostislavich nicknamed Fyodor the Black or Fyodor Chermny (c. 1230s – 1298), Феодор Ростиславич Чёрный (Чермный)) is a saint of the Russian Orthodox Church and was a ruler of Smolensk and Yaroslavl. The alternative interpretation of his nickname is Theodore the Beautiful.