Prince of Pereyaslavl
The Prince of Pereyaslavl (Ukrainian: Князь Переяславський) was the ruler of the Principality of Pereyaslavl, a lordship based on the city of Pereyaslavl on the Trubizh River, and straddling extensive territory to the east in what are now parts of Ukraine. It was situated on the southern frontier of Kievan Rus' and bordered the steppe.