Complex sentence: James Forbes daughter Charlotte married Major-General Sir Charles Bruce, KCB to become Lady Bruce, and was the mother of Charlotte Campbell-Bannerman (1836-1906) the wife of Henry Campbell-Bannerman, Prime Minister of the United Kingdom.
Split into simpler sentences: James Forbes daughter Charlotte married Major-General Sir Charles Bruce, KCB to become Lady Bruce. She was also mother of Charlotte Campbell-Bannerman (1836-1906) the wife of Henry Campbell-Bannerman, Prime Minister of the United Kingdom.