Complex sentence: She married secondly, by 1532, Sir William Kingston, Lieutenant of the Tower of London, by whom she had two children, Bridget Kingston, who married George Baynham, and Anthony Kingston.
Split into simpler sentences: She married secondly Sir William Kingston, Lieutenant of the Tower of London. They married at some point before 1534, and had two children, Bridget Kingston, who married George Baynham, and Anthony Kingston.