Complex sentence: In 1783, through the treasury influence of his friend Edmund Burke, he was appointed organist to the chapel of Chelsea Hospital, and moved from St Martin's Street, Leicester Square, to live in the hospital for the rest of his life.
Split into simpler sentences: In 1783, through the treasury influence of his friend Edmund Burke, he was appointed organist to the chapel of Chelsea Hospital. He moved there from St Martin's Street, Leicester Square and remained there for the rest of his life.