Background
He was the son of another Charles Trimnell (c 1630–1702), rector of Abbots Ripton, Huntingdonshire.
He was the son of another Charles Trimnell (c 1630–1702), rector of Abbots Ripton, Huntingdonshire.
He was educated at Winchester College and New College, Oxford, where he matriculated in 1681, and graduated Bachelor of Arts in 1688.
After the accession of George I of England in 1714 he was in the royal favour and influential. Sir John Trevor, Master of the Rolls, gave him an appointment on his graduation, as preacher of the Rolls chapel. He travelled to the Netherlands with Robert Spencer, 2nd Earl of Sunderland in 1689.
Sunderland was a Roman Catholic convert of the end of the reign of James II, who returned to England in 1691 as an Anglican Whig, employing Trimnell as chaplain at Althorp.
He was rector of Bodington, in Sunderland"s gift, in 1694, and of Brington, the local parish of Althorp, in 1696. In 1698 he became archdeacon of Norwich.
A royal chaplain under Queen Anne, he became rector of Southmere in 1704, and of Street Giles" Church, Norwich in 1705. He was rector of Street James, Westminster in 1706, and Bishop of Norwich in 1708.
In March 1710 he spoke forcefully in the House of Lords for the impeachment of Henry Sacheverell.
He preached in 1712 to the House of Lords what Jonathan Swift called a "terrible Whig sermon" in the Journal to Stella, sufficiently controversial that the Lords declined to thank him and order it printed. He was in high favour on the accession of George I in 1714. He became Clerk of the Closet, and Bishop of Winchester in 1721.
The Black Acting of 1723 was passed at his instigation, to deter poaching of deer at Bishop"s Waltham.