Arthur Mainwaring Forest. In 1641 the forest was the scene of disorder and poaching of the deer, and he recommended firm action around Egham, which was however thwarted by local sympathies. He had objected at the beginning of the reign of Charles I to the East India Company's gunpowder mills on the edge of Windsor Forest; later, in 1635, he was himself in the gunpowder business with Andrew Pitcairn. Arthur Mainwaring Sir Arthur Mainwaring (c. 1580 – 1648) was an English politician who sat in the House of Commons from 1624 to 1626. Mainwaring was the eldest son of Sir George Mainwaring
Henry Mainwaring to become a scourge to the Spanish. On reaching the Straits of Gibraltar, Mainwaring announced to his crew his intention of fighting the Spanish anywhere he found them. Turning to piracy was not that out of line for the young valiant in those years. In 1614 he sailed his fleet to Newfoundland, saying that the region was the best in which to recruit a pirate crew and reprovision his ships. Mainwaring used Easton's old base at Harbour Grace, Canada, as his pirate base and raided Spanish, Portuguese, and French ships. On 4 June 1614, off the coast of Newfoundland, Mainwaring,