Complex sentence: Sidney Colvin (18 June 1845--11 May 1927) was an English curator and literary and art critic, part of the illustrious Anglo-Indian Colvin family, now primarily remembered for his friendship with Robert Louis Stevenson.
Split into simpler sentences: Sidney Colvin (18 June 1845--11 May 1927) was an English curator and literary and art critic, part of the illustrious Anglo-Indian Colvin family. He is primarily remembered for his friendship with Robert Louis Stevenson.