Leslie Stephen,
Dictionary of National Biography…
(1898)
“ THYNNE, Sir JOHN (d. 1580) , builder of Longleat, was the eldest son of Thomas Thynne or De la Inne of Church Stretton, Shropshire, by his wife, Margaret, daughter and heiress of Thomas Eynes or Heynes of that place. He was early introduced at the court of Henry VIII by his uncle, William Thynne [q. v.] ; and, 'being an ingenious man and a travalier,' was taken into the household of Edward Seymour, earl of Hertford and afterwards duke of Somerset [q. v.] ”
