Mount Lebanon also lent its name to two political designations: an semi-autonomous province in Ottoman Syria that was established in 1861 and the central Governorate of modern Lebanon (see Mount Lebanon Governorate). The Mount Lebanon administrative region emerged in a time of rise of nationalism after the civil war of 1860. France intervened on behalf of the local Christian population and Britain on behalf of the Druze after the 1860 massacres in which 10,000 Christians were killed in clashes with the Druze. In 1861, the Mount Lebanon autonomous district was established within the Ottoman system, under an international guarantee. It was ruled by a non-Lebanese Christian subject of the Ottoman Empire, known locally as the Mutasarrıf (one who rules the district Mutasarrifiyya). Christians formed the majority of the population of Mount Lebanon, with a significant number of Druze.