The princes of Ostroh considered themselves the descendants of St. Prince Volodymyr. Thereby, they paid close attention to the capital city of the Rurikids – Kyiv. The Ostroh princes had two ancestral tombs, namely the Epiphany Cathedral in Ostroh and the Church of the Assumption of the Kyiv-Pechersk Lavra. Most of the princes of the Rurik dynasty were buried in Kyiv, so the princes of Ostroh pursued the involvement to the capital city circles.