Henry was apparently in the household of the Chancellor, Sir Thomas Bromley, till his death in 1587. The letters contain much court, national, and foreign news, inc. treason trials and other causes celebres, refs. to the exploits of Sir Francis Drake, Spanish invasion scares and anti-papist sentiment. There is a detailed description of the visit of the Polish lord, Albertus Alasco, to Queen Elizabeth in 1583, and refs. to the committing of the Countess of Derby for sorcery, 1579, Mary Queen of Scots, the muster at Greenwich, 1585, bankruptcy of the London Turkish merchants, 1595, Essex's execution. Also re lawsuits of Sir Thomas Knyvett involving the Flowerdews, re foldcourse at Colkirk, and with tenants (?at Wymondham) and numerous other of Sir Thomas's concerns inc. purchase of books (e.g. Hesiod, Matthew Paris, Stephenus 'de Urbibus') and purchase of antique medals and cameos. Also Sir Thomas Knyvett's appointment as deputy lieutenant, 1584, and subsequent dispute and disputed Norfolk election of 1586 and other parliament business, Henry Knyvett's appointment to a receivership in Norfolk, Sir Thomas Parry's projected missions to Scotland and France, Henry Knyvett's journey to Ireland with (?)Essex and to Calais, 1600, and (after 1599) his lack of fortune and attempts to secure a military command. Also advice in 1601 to Sir Thomas to smoke for health reasons. The letters include much on the workings of the central courts. 1579-1580, 1583-1589, 1592-1596, 1599-1602.