On 08 Dec 1680 [his brother-in-law] Charles Fox (age 20) was elected MP Eye in the interest of his brother-in-law Charles Cornwallis 3rd Baron Cornwallis (age 24). He appears to have been underage at the time.

Evelyn's Diary. 18 Dec 1684. I went with Lord Cornwallis (age 28) to see the young gallants do their exercise, Mr. Faubert having newly rail'd in a manage, and fitted it for the academy. There were the Dukes of Norfolk (age 29) and Northumberland (age 18), Lord Newburgh, and a nephew of (Duras) Earle of Feversham (age 43). The exercises were, 1. running at the ring; 2. flinging a javelin at a Moor's head; 3. discharging a pistol at a mark; lastly, taking up a gauntlet with the point of a sword; all these perform'd in full speede. The D. of Northumberland (age 18) hardly miss'd of succeeding in every one, a dozen times, as I think. The D. of Norfolk (age 29) did exceeding bravely. Lords Newburgh and Duras seem'd nothing so dextrous. Here I saw the difference of what ye French call "belle homme a cheval", and "bon homme a cheval;" the Duke of Norfolk being the first, that is, rather a fine person on a horse, the Duke of Northumberland being both in perfection, namely, a graceful person and excellent rider. But the Duke of Norfolk told me he had not ben at this exercise these 12 yeares before. There were in the field ye Prince of Denmark (age 31), and the Lord Landsdown (age 23), sonn of ye Earle of Bath (age 56), who had ben made a Count of ye Empire last Summer for his service before Vienna.

Evelyn's Diary. 04 Jun 1685. Then the King (age 51) rose, the Lords accompanying him to his bed-chamber, where, whilst he repos'd himselfe, tired indeede as he was with griefe and watching, they return'd againe Into the Council-chamber to take order for the proclaiming his Ma*, which (after some debate) they consented should be in the very forme his grandfather K. James I. was, after ye death of Queene Elizabeth; as likewise that the Lords, &c. should proceede in their coaches thro' the Citty for the more solemnity of it. Upon this was I, and severall other Gentlemen waiting in the Privy-gallerie, admitted into ye Council-chamber to be witnesse of what was resolv'd on. Thence with the Lords, the Lord Marshall and Heraulds, and other Crowne Officers being ready, we first went to White-hall gate, where the Lords stood on foote bare-headed, whilst the Herauld proclaim'd his Majesty's title to the Imperial Crowne and Succession according to ye forme, the trumpets and kettle-drums having first sounded 3 times, which ended with the people's acclamations. Then a Herauld call'd the Lords' coaches according to rank, myselfe accompanying the solemnity in my Lord Cornwallis's (age 29) coach, first to Temple Barr, where the Lord Maior and his brethren met us on horseback, in all theire formalities, and proclaim'd the King; hence to the Exchange in Cornhill, and so we return'd in the order we set forth. Being come to Whitehall, we all went and kiss'd the King (age 51) and Queenes (age 26) hands. He had ben on ye bed, but was now risen and in his undresse. The Queene (age 23) was in bed in her appartment, but put forth her hand, seeming to be much afflicted, as I believe she was, having deported herselfe so decently upon all occasions since she came into England, which made her universally belov'd. Thus concluded this sad and not joyfull day.