Sir John Mainwaring, 2nd Baronet was laid to rest at Over Peover. He had married Elizabeth, eldest daughter of Roger Whitley of Peel, Cheshire and had several sons and daughters. He was succeeded in the baronetcy by his eldest surviving son Thomas. Sir John Mainwaring, 2nd Baronet Sir John Mainwaring, 2nd Baronet (8 May 1656 – 4 November 1702) was an English politician who sat in the House of Commons from 1689 to 1702. Mainwaring was the son of Sir Thomas Mainwaring, 1st Baronet of Peover Hall and his wife Mary Delves, daughter of Sir Henry Delves, 2nd Baronet, of Dodington. Mainwaring succeeded to the
Henry Mainwaring in command of eight vessels, plundered the cod-fishing fleet, stealing provisions and taking away with him carpenters and mariners. In taking seamen, Mainwaring would pick one out of every six. In all, 400 men joined him willingly, while others were perforstmen. Sailing to the coast of Spain, Mainwaring then took a Portuguese ship and plundered her cargo of wine, and he later took a French prize and stole 10,000 dried fish from her hold. With Mainwaring away from his main base in La Mamora, on Atlantic coast of present-day Morocco, a Spanish fleet under Don Luis Fajardo, sailing from Cádiz