Sir John Heydon

Sir John Heydon (died 1653) was an English Royalist military commander and mathematician, Lieutenant-General of the Ordnance at the outbreak of the First English Civil War.

Sir John Heydon

Sir John Heydon (died 1653) was an English Royalist military commander and mathematician, Lieutenant-General of the Ordnance at the outbreak of the First English Civil War.