William Daniell was the eldest son of William and his wife, who were innkeepers. He was orphaned at an early age and was adopted by his uncle, the renowned landscape-painter Thomas Daniell (1749–1840). At the age of fifteen, Daniell accompanied his uncle on a journey to India, where he acted as the painter’s assistant and made his own sketches of the landscape and cultures he encountered.

Following his return to London in 1794, Daniell began work on the aquatints of Oriental Scenery (1795-1808) based on his experiences in India, a project that occupied him for the next 15 years. Daniell entered the Royal Academy Schools in 1799 and exhibited 168 pictures – mostly landscapes – at the Academy between 1795 and 1838, including views of England, Scotland and India. Over the course of his career, Daniell’s depictions of India shifted away from topographical observation towards ‘Oriental’ fantasy.

Daniell was also a prolific printmaker and produced countless illustrations for historical and travel works and volumes on the natural world. One of his most celebrated works was Voyage round Great Britain (4 vols., 1814-25).

Daniell married Mary Westall, the brother of the artist Richard Westall, in 1801. Daniell was elected an associate of the Royal Academy in 1807 and a full Member in 1822. He continued to make artworks and exhibit at the Academy until his death in London in 1837.