6 Holles, Memorials, 108-9; Letters of John Holles, I, x; C[harles] H[arding] F[irth], 'Holles, Denzil (1599-1680), DNB; idem, 'Holles, John, first Earl of Clare (1564?1637)', DNB; idem, 'Holles, John, second Earl of Clare (1595-1666)', DNB; Patricia Crawford, Denzil Holles, 1598-1680: A Study of His Political Career (London, 1979), 13.
7 Letters of John Holles, I, 62-3; Crawford, Denzil Holles, 14.
Wheatley, London Past and Present, 3 vols (London, 1891), I, 405-6; Letters of John Holles, I, xx, xxvi; II, 275.
12 In a letter of 16 December 1620 John Holles noted that one of his sons was currently abroad, serving in the cause, and had been so for some time; this son is plausibly identified as Francis by Seddon; Letters of John Holles, II, 248, 249, n.
The first earl had been a proficient dancer and was insistent that his sons acquire this important social skill; Holles, Memorials, III; Letters of John Holles, I, 54.
15 Letters of John Holles, I, 51-4, 83, 90; II, 217-18.
16 Letters of John Holles, 1, 81; II, 239, 242, 261, 263.
He was certainly in London between October and November 1620, at which point there is a gap in his father's correspondence, suggesting that he too was in London from that point on; this would make sense because the first earl was to sit in the Lords once parliament opened at the end of January; Letters of John Holles, I, xxxix, n.