b. 20 July 1529, 1st s. of Sir William Sidney by Anne, da. of Sir Hugh Pagenham, wid. of Thomas Fitzwilliam. m. 29 Mar. 1551, Mary, da. of Sir John Dudley, afterwards Duke of Northumberland, 3s. inc. Philip and Robert 4da. suc. fa. 1553.DNB; W. Berry, Co. Genealogies, Kent, 47; Collins, Sidney State Pprs. i. 96; CPR, 1553 and App. Edw. VI, p. 7. Kntd. 1551; KG 1564.Lansd. 94, f. 34; 102, f. 89.
Offices Held
Henchman of Henry VIII c. 1538; gent. of privy chamber c. 1547; royal cupbearer 1550;SP12/159/1; CPR, 1549–51, p. 174; DNB . keeper, Richmond park from c. 1552; high steward of honour of Otford and of Knole park and master of otterhounds 1553; j.p. Kent from c. 1555, many Welsh counties from c. 1561; many other English counties from c. 1573; vice-treasurer [I] 1556 – 59; ld. justice 1557–8;APC, iv. 242–3; CPR, 1553 and App. Edw. VI, pp. 201–2; 1555–7, p. 82; 1557–8, pp. 2, 457; 1558–60, p. 120. president, council in the marches of Wales 1559 – 86; ld. dep. [I] 1565 – 71, 1575 – 78; PC July 1575.Stowe, 571, f. 53; Flenley, Cal. Reg. Council, Marches of Wales, 11, 30 et passim; CSP Ire. 1509–73, pp. 265, 441; 1574–85, pp. 77, 142; APC, ix. 11.