John Byron (died 1623)
Sir John Byron MP (1562-1623) was an English nobleman, politician, knight, and Member of Parliament for Nottinghamshire in 1597. He was the son of Sir John Byron (died 1600). He had one daughter and ten sons, including some Cavalier commanders in the English Civil War: John Byron, 1st Baron Byron, Richard Byron, 2nd Baron Byron, Sir Robert Byron, Sir Philip Byron, and Sir Thomas Byron.