Complex sentence: She married William Henry Walter Montagu Douglas Scott, Earl of Dalkeith on Tuesday 22 November 1859 at London, England, the eldest son of the Sir Walter Francis Montagu Douglas Scott, 5th Duke of Buccleuch & 7th Duke of Queensberry and his wife Lady Charlotte Thynne.
Split into simpler sentences: She married William Henry Walter Montagu Douglas Scott, Earl of Dalkeith on Tuesday 22 November 1859 in London. Lord Dalkeith was the eldest son of the Walter Montagu DouglasScott, 5th Duke of Buccleuch and his wife Lady Charlotte Thynne.