Arthur Throckmorton Arthur Throckmorton Sir Arthur Throckmorton (ca. 1557 – 21 July 1626) was an English courtier and politician. He was the second son of the diplomat Sir Nicholas Throckmorton of Beddington, Surrey and was educated at Magdalen College, Oxford. His sister Elizabeth incurred the Queen's displeasure by secretly marrying Sir Walter Raleigh. Arthur inherited estates in several counties on the death of his father in 1571 (his elder brother was adjudged a lunatic) and after his marriage opted to reside at Paulerspury in Northamptonshire. He travelled abroad from 1580 to 1582 after which he joined the court of Queen Elizabeth I.
Throckmorton Plot and William Cecil, Lord Burghley, which obliged all signatories to execute anyone who attempted to usurp the throne or to assassinate the Queen. Throckmorton was convicted of high treason and executed in July 1584. There were no more resident Spanish ambassadors for the remainder of Elizabeth's reign. After discovery of the plot, Mary, Queen of Scots was placed under strict confinement at Chartley Hall in Staffordshire. Throckmorton Plot The Throckmorton Plot was an attempt, in 1583, by English Roman Catholics to murder Queen Elizabeth I of England and replace her with her first cousin once removed, Mary, Queen of Scots.