Complex sentence: Sir Alexander Douglas (1738--1812), 7th Baronet, of Glenbervie, who, although married to Barbara (d.1815), daughter of James Carnegie of Findhaven, left no issue.
Split into simpler sentences: Sir Alexander Douglas (1738--1812), 7th Baronet, of Glenbervie. He married Barbara (d.1815), daughter of James Carnegie of Findhaven, but left no issue.