<prompt> Translate the following text to SwahiliInitially known as the Royal Institute in the 1830s, the National Gallery benefited from a number of bequests, not least that of the Duke of Sutherland in 1946.  <response>: Tangu kuanzishwa kwa Royal Institute katika miaka ya 1830, Jumba la sanaa la Taifa lilipata faida kutoka kwa urithi kadhaa, hasa ule wa Duke wa Sutherland mnamo 1946. 