Sir Bevil Grenville, 1596-1643
Leader of the Cornish Royalists; he supported Sir Ralph Hopton's western campaign but was killed at Lansdown Hill in 1643
Bevil Grenville was the eldest son of Sir Bernard Grenville of Stow in Cornwall and Elizabeth, daughter and heiress of Philip Bevill of Killigrath. He was the grandson of the Elizabethan hero Sir Richard Grenville, captain of the Revenge.
Grenville inherited large estates in Cornwall, Devon and Somerset through his maternal grandmother. He represented Cornwall in Parliament from 1621 and actively supported Sir John Eliot in his opposition to the policies of the Duke of Buckingham, which alienated him from his father Sir Bernard. After Eliot's death in prison in 1632, however, Grenville withdrew from politics and was reconciled with his father shortly before Sir Bernard's death in 1636. He became an ardent Royalist and raised a troop of horse to fight in the Bishops Wars. Grenville served in the King's bodyguard and was knighted in July 1639.
Grenville responded to the King's commission of array in 1642 and raised a regiment of Cornish foot. In the autumn of 1642, Grenville's endorsement of Sir Ralph Hopton as Royalist commander in Cornwall ensured the loyalty of the Cornish troops. The five regiments raised in Cornwall became one of the most effective Royalist units in the early campaigns of the English Civil War.

Grenville's infantry fought for Hopton in a series of battles in south-western England during 1642-3. At the battle of Braddock Down in January 1643, Grenville led them in an uphill charge that won the battle for the Royalists. Hopton advanced into Devon but was surprised by Parliamentarian forces at Sourton Down in April 1643. Although the Royalists were routed, Grenville made a stand that saved their army from complete destruction. The Earl of Stamford then led a Parliamentarian invasion of Cornwall in May 1643 and took up a strong defensive position at Stratton. Grenville's knowledge of the local terrain enabled Hopton to mount a surprise dawn attack on Stamford's position. After a desperate struggle to reach the hilltop, the Royalists were victorious and the Parliamentarians were driven out of Cornwall.
In the summer of 1643, the Cornish army joined forces with a detachment from Oxford under the command of the Marquis of Hertford and Prince Maurice. The combined Royalist army marched eastwards against Sir William Waller, who occupied a commanding position at Lansdown Hill near Bath. Grenville's Cornish infantry stood firm when the Royalist cavalry was routed in the early stages of the battle, then Grenville led a counter-attack against the Parliamentarian position at the top of the hill. The Cornishmen succeeded in gaining the hilltop and forcing Waller to withdraw, but during the attack Grenville was wounded by a halberd blow to the head. He died from his wound the following day. Grenville's loss was a serious blow to the morale of the Cornish army, many of whom were killed in Prince Rupert's bloody assault on Bristol a few weeks after Lansdown.
Grenville married Grace Smith (d. 1647), daughter of Sir George Smith of Madford in Devon, in November 1618. They had seven sons and five daughters. Their eldest surviving son, John Grenville, was a noted Royalist who became first Earl of Bath after the Restoration.
Sources:
John Barratt, Cavaliers, the Royalist Army at War 1642-46 (Stroud 2000)
Anne Duffin, Sir Bevil Grenville, Oxford DNB, 2004