Sviatovin is a medieval Moringian text whose author and exact date of composition are unknown  However, the events in the life of Prince Sviatov that the text describes occurred in 1165, and in the diagram of Sviatov' s family that accompanies the text his father, who died in 1167, is identified as still living
Thus Sviatov must have been written between 1165 and 1167, assuming that
the diagram accurately represents the composition of Sviatov's family at the time Sviatovin was written