LEIGH, WILLIAM, an Irish adventurer, who while serving with the 19th Light Dragoons in Bombay, shot down, in 1803, his captain and fled his unit. He travelled in the remote parts of Sindh and Afghanistan. In Khorāsān he embraced Islam and adopted the name of Muhammad Khān. He came to Lahore in 1825, and, in an interview with Mahārājā Raṇjīt Siṅgh, stated that he knew the art of cartography. He showed him maps of Kābul, Kandahār, Sindh and Peshāwar. The Mahārājā gave him appointment and attached him to General Ventura. There is no mention of him in the Sikh records after 1830.