Henry T. Colebrooke was a Professor of Sanskrit at Fort William College. Fort William College was established in 1800 in Calcutta, India by the British East India Company. It was founded with the aim of training British civil servants for their work in India, particularly in the Bengal Presidency.
During its early years, Fort William College focused on teaching Indian languages, including Sanskrit, Persian, Arabic, and Bengali, to British officers. Henry T. Colebrooke, a prominent British orientalist and scholar, was appointed as the Professor of Sanskrit at Fort William College. He played a crucial role in the academic and linguistic development of the college, contributing significantly to the study of Sanskrit in India.
Therefore, the correct answer is option 1: Fort William College.