Sir Thomas Salisbury (or
Salusbury) (1564 – September 20, 1586) was one of the conspirators executed for his involvement in the
Babington Plot. Salisbury was the elder son of
Katheryn of Berain and her first husband, Sir John Salusbury, and was the heir to the
Lleweni Estate. He married Margaret Wynn (daughter of Katheryn's third husband, Maurice Wynn), and their daughter, Margaret, eventually inherited Berain, whereas Lleweni went to Thomas's younger brother,
Sir John Salusbury. Thomas Salisbury was implicated in the plot to murder Queen
Elizabeth I and replace her with
Mary, Queen of Scots, and he was executed, along with
Sir Anthony Babington and several others, by being hanged, drawn and quartered.