Church Statute of Prince Yaroslav (Russian: Церковный Устав князя Ярослава) is a source of church law in Old Rus', defined legal authority of church by the prince (knyaz), his administration and churchmen. Yaroslav's Statute was a short legal code, regulated relationship between the church and the state, including demarcation of jurisdiction between church and princely courts, index of persons within the church jurisdiction, rules of family law (family law belonged to church jurisdiction) and sanctions against moral violation. The statute was written at the 11th–12th century and remade during 13th–16th centuries, in Old Church Slavonic and Old Russian. It was one of the first church sources of Old Russian Law. Church Statute of Prince Vladimir and other Old Russian princely statutes served