Complex sentence: Sir Henry Seymour (c.1503--5 April 1578) was an English MP, the brother of Jane Seymour, queen consort of Henry VIII and consequently uncle to Edward VI.
Split into simpler sentences: Sir Henry Seymour (c.1503--5 April 1578) was an English politician. He was the brother of Jane Seymour, queen consort of Henry VIII and the uncle of Edward VI.