Career
In 1685 he raised a regiment of foot, which later became the 9th (East Norfolk) Regiment of Foot. He resigned this command following the Glorious Revolution, as he personally opposed William III of England taking the throne. He was replaced by Colonel John Cunningham who led the regiment to Ireland to try and relieve the Siege of Derry.
In the House of Commons, he represented Weobley from 1685 to 1689, Hereford from 1689 to 1695, Herefordshire from 1698 to 1701 and Weobley again in 1701, from 1702 to 1708, and from 1710 to 1713.
The couple had two children. Henry Cornewall (1685-1756), General
William Henry Cornewall (died 1688, aged four months)
Margarita died on 26 April 1692 and was buried at the Dutch Church, Austin Friars.
The couple had three children:
Velters Cornewall (1697-1768), Member of Parliament for Herefordshire
James Cornewall (1698-1744), Captain in the Royal Navy, killed at the Battle of Toulon
Mary Cornewall (d 1741), married to Honorary Henry Berkeley
Henry Cornewall died on 22 February 1717, and was buried six days later in the South aisle of Westminster Abbey.