On 06 Mar 1638 Henry Capell 1st Baron Capell Tewkesbury was baptised.

Around 1655 John Hoskins (age 65). Portrait of Henry Capell 1st Baron Capell Tewkesbury (age 16).

Evelyn's Diary. 08 May 1667. Made up accounts with our Receiver, which amounted to £33,936 1s. 4d. Dined at Lord Cornbury's (age 5), with Don Francisco de Melos, Portugal Ambassador, and kindred to the Queen (age 28): Of the party were Mr. Henry Jermyn (age 62) and Sir Henry Capel (age 29). Afterward I went to Arundel House [Map], to salute Mr. Howard's sons, newly returned out of France.

Pepy's Diary. 17 Jan 1669. Thence, taking leave of my guests, he and I and W. Hewer (age 27) to White Hall, and there parting with Spong, a man that I mightily love for his plainness and ingenuity, I into the Court, and there up and down and spoke with my Lords Bellassis and Peterborough about the business now in dispute, about my deputing a Treasurer to pay the garrison at Tangier, which I would avoid, and not be accountable, and they will serve me therein. Here I met Hugh May (age 47), and he brings me to the knowledge of Sir Henry Capell (age 30), a Member of Parliament, and brother of my [his brother] Lord of Essex (age 37), who hath a great value, it seems, for me; and they appoint a day to come and dine with me, and see my books, and papers of the Office, which I shall be glad to shew them, and have opportunity to satisfy them therein. Here all the discourse is, that now the King (age 38) is of opinion to have the Parliament called, notwithstanding his late resolutions for proroguing them; so unstable are his councils, and those about him. So staying late talking in the Queen's (age 30) side, I away, with W. Hewer (age 27) home, and there to read and talk with my wife, and so to bed.

Evelyn's Diary. 27 Aug 1678. Hence, I went to my worthy friend, Sir Henry Capel (age 40) [at Kew], brother to the [his brother] Earl of Essex (age 46); it is an old timber-house; but his garden has the choicest fruit of any plantation in England, as he is the most industrious and understanding in it.

Evelyn's Diary. 25 Jun 1679. The new Commissioners of the Admiralty came to visit me, viz, Sir Henry Capell (age 41), brother to the [his brother] Earl of Essex (age 47), Mr. Finch (age 31), eldest son to the Lord Chancellor (age 57), Sir Humphry Winch (age 57), Sir Thomas Meeres (age 45), Mr. Hales, with some of the Commissioners of the Navy. I went with them to London.

Evelyn's Diary. 30 Oct 1683. I went to Kew to visit Sir Henry Capell (age 45), brother to the late [his brother] Earl of Essex; but he being gone to Cashiobury, after I had seen his garden and the alterations therein, I returned home. He had repaired his house, roofed his hall with a kind of cupola, and in a niche was an artificial fountain; but the room seems to me over-melancholy, yet might be much improved by having the walls well painted á fresco. The two green houses for oranges and myrtles, communicating with the rooms below, are very well contrived. There is a cupola made with pole-work between two elms at the end of a walk, which being covered by plashing the trees to them, is very pretty; for the rest there are too many fir trees in the garden.

Evelyn's Diary. 05 Sep 1685. I accompanied his Lordship to Windsor (dining by the way at Sir Henry Capel's (age 47) at Kew), where his Ma* (age 51) receiving me with extra ordinary kindnesse, I kiss'd his hand. I told him how. sensible I was of his Ma*s (age 51) gracious favour to me, that I would endeavour to serve him with all sincerity, diligence, and loyalty, not more out of my duty than inclination. He said he doubted not of it, and was glad he had the opportunity to shew me the kindnesse he had for me. After this came aboundance of greate men to give me joy.

Evelyn's Diary. 24 Mar 1688. From thence to Kew, to visit Sir Henry Capel's (age 50), whose orangery and myrtetum are most beautiful and perfectly well kept. He was contriving very high palisadoes of reeds to shade his oranges during the summer, and painting those reeds in oil.

Evelyn's Diary. 01 Aug 1693. Lord Capel (age 55), Sir Cyril Wyche (age 61), and Mr. Duncomb, made Lord Justices in Ireland; Lord Sydney (age 52) recalled, and made Master of the Ordnance.