Sir Nicholas Throckmorton died on February 12, 1571; he was a survivor of the Tudor succession, restored to favor under Mary I in spite of his initial support of Lady Jane Grey--who was executed on February 12 in 1554--and suspicion of his involvement in the Wyatt Rebellion. According to the Dictionary of National Biography:
diplomatist, born in 1515, was fourth of the eight sons of Sir George Throckmorton of Coughton, Warwickshire. His grandfather, Sir Robert Throckmorton (son of Thomas, and grandson of Sir John Throckmorton [q. v.]), was a privy councillor under Henry VII, and died in 1519 while on a pilgrimage to Palestine. His mother was Katharine, daughter of Sir Nicholas, lord Vaux of Harrowden, by his wife Elizabeth, daughter of Henry, lord Fitzhugh, and widow of Sir William Parr, K.G. She was thus aunt by marriage to Queen Catherine Parr, and Sir Nicholas claimed the queen as his first cousin. His father, Sir George, incurred, owing to some local topic of dispute, the ill-will of Cromwell, whose manor of Oversley adjoined that of Coughton. Early in 1540 Cromwell contrived to have his neighbour imprisoned on a charge of denying Henry VIII's supremacy, but Lady Throckmorton's niece, Catherine Parr, used her influence with the king to procure Sir George's release. Sir George was one of the chief witnesses against Cromwell at his trial, which took place in the same year, and was consulted by Henry VIII in the course of the proceedings. After Cromwell's fall Sir George purchased Cromwell's forfeited manor of Oversley. He was sheriff of Warwickshire and Leicestershire in 1526 and 1546, and built the great gatehouse at Coughton. He died soon after Queen Mary's accession. Sir Robert Throckmorton (d. 1570), Sir George's eldest son and successor in the Coughton estate, was succeeded by his son Thomas (d. 1614), who, as a staunch catholic, suffered much persecution and loss of property during Elizabeth's reign. Thomas Throckmorton's grandson Robert was a devoted royalist, and was created a baronet on 1 Sept. 1642. The baronetcy is still held by a descendant.
As for Nicholas, the fourth son, he was a Protestant:
Nicholas was chiefly brought up by his mother's brother-in-law, Lord Parr. In youth he served as page to the Duke of Richmond, and probably went to Paris with his master in 1532. With two brothers he joined the household of his family connection, Catherine Parr, soon after her marriage to Henry VIII in July 1543. Unlike other members of his family, he accepted the reformed faith of his mistress, and remained a sturdy protestant till his death. He and two brothers were present as sympathising spectators at the execution of Anne Askew, the protestant martyr, in 1546 (Narratives of the Reformation, Camden Soc. pp. 41–2).
Throckmorton entered public life as M.P. for Malden in 1545, and sat in the House of Commons almost continuously till 1567. The accession of Edward VI was favourable to his fortunes. With the king's religious sentiment he was in thorough sympathy, and Edward liked him personally. . . .
Although he was Protestant, he eventually sided with the Catholic Mary instead of the Protestant Jane:
But he was suspected of involvement in the Wyatt Plot and spent some time in the Tower of London, but was acquitted at trial by the jury! That's extraordinary in the history of treason trials, but he had defended himself well--and both he and the jury were still imprisoned after the verdict.
When Mary died and Elizabeth became queen, Throckmorton began diplomatic contacts with Mary Stuart, Queen of Scotland and Queen of France (briefly):
As you read the rest of the biography, you might notice that Throckmorton was not always a successful diplomat. One problem he had was that Elizabeth I's directions were not always clear, and sometimes even contradictory. He fell out of her graces one last time over Thomas Howard, the Duke of Norfolk's idea of marrying the deposed Mary, Queen of Scots:
Throckmorton thenceforth suffered acutely from a sense of disappointment. His health failed during 1568, but he maintained friendly relations with Cecil, to whom he wrote from Fulham on 2 Sept. 1568 that he proposed to kill a buck at Cecil's house at Mortlake. He had long favoured the proposal to wed Queen Mary to the Duke of Norfolk, and he was consequently suspected next year of sympathy with the rebellion of northern catholics in Queen Mary's behalf. In September 1569 he was imprisoned in Windsor Castle, but he was soon released and no further proceedings were taken against him. He died in London on 12 Feb. 1570–1. . . . Throckmorton was buried on the south side of the chancel in St. Catherine Cree Church in the city of London.
Image Credit at top: Throckmorton's monument in St. Katherine Cree. Note the bottom of the the portrait of William Laud, Archbishop of Canterbury above the tomb in this picture (he was Bishop of London when he consecrated the rebuilt church in 1631).