Principality of Stepan

The Principality of Stepan is an appanage principality][ with the center in the city of [[Stepan, located on the left bank of the Goryn River, a right tributary of the Pripyat River. Now it is an urban settlement in Sarny Rayon of Rivne Oblast in Ukraine.

History
The Principalitu of Stepan split from the Principality of Turov and Pinsk in the XIII century. Very little is known about the princes of Stepan. The first known is Prince Rostislav Glebovich. It is not known exactly whose son he was, but most likely he was the son of the Prince of Turov Gleb Yuryevich of Turov, but in some sources he is identified with the Prince of Pinsk Rostislav Svyatopolchich. Rostislav is mentioned in the chronicles in 1228, when, after the death of Prince Ivan Mstislavich of Lutsk, he captured Chartoryisk, but was repelled by Daniil Romanovich of Halych.

Rostislav had the only son Gleb Rostislavich. M. D. Khmyrov suggested that Gleb's wife was Izmaragda (Smaragda), daughter of the Grand Prince of Kiev Rostislav Ryurikovich. Gleb Rostislavich's son was Ivan Glebovich, whose death is reported in the Ipatiev Chronicle in 1292. He was replaced by his son Vladimir Ivanovich. After that, information about the princes of Stepan disappear for a long time.

In 1387 a Prince of Stepan Semyon was mentioned. Its origin is unknown. Voitovich considers his descendants of Vladimir Ivanovich(grandson), however, according to the Polish historian Józef Wolf, Semyon was rather Gediminovich, son of the Prince of Pinsk Vasili Mikhailovich, son of Narimund Gediminovich.

In the XVI century, the territory of the principality was part of the possessions of the princes of Ostrog.