クラレンドン法
Henry and Becket quickly disagreed over several issues, including Becket's attempts to regain control of lands belonging to the archbishopric and his views on Henry's taxation policies. The main source of conflict concerned the treatment of clergy who committed secular crimes: Henry argued that the legal custom in England allowed the King to enforce justice over these clerics, while Becket maintained that only church courts could try the cases. The matter came to a head in January 1164, when Henry forced through agreement to the Constitutions of Clarendon; under tremendous pressure, Becket temporarily agreed but changed his position shortly afterwards. The legal argument was complex at the time and remains contentious.