Church Statute of Prince Volodimir (modern writing: Vladimir; Russian: Церковный Устав князя Владимира) is a source of church law in Old Rus', defined legal authority of church and legal status of clergy by the state: prince (knyaz) and his administration. Vladimir's Statute was a short legal code, regulated relationship between the church and the state, including demarcation of jurisdiction between church and princely courts, and defined index of persons and organizations within the church jurisdiction. The church also got under its supervision the system of weights and measures, and monthly support: tithe from all princely income. The statute was written at the beginning of the 12th century and remaked during many centuries. The statute was written in Old Church Slavonic and Old Russian.