Thomas Phelippes
Thomas Phelippes
Born 1556 (1556)
Died 1625 (aged 68–69)
Nationality English

Thomas Phelippes (1556-1625), also known as Thomas Phillips was a linguist, who was employed as a forger and intelligence gatherer. He served mainly under Sir Francis Walsingham, in the time of Elizabeth I, and most notably deciphered the coded letters of Babington Plot conspirators.

Life and Education

Little is known about Phelippes family background except that he was the son of a cloth merchant. Despite of his humble origins, it is believed that entered Trinity College, Cambridge, in 1569 and graduated with a Bachelor of Arts in 1574. Phelippes was a linguist who could speak French, Italian, Spanish, Latin and German. His education helped him to master cipher skills and be an excellent cryptographer of high reputation. Therefore he was employed by Sir Francis Walsingham, the principal Secretary to Queen Elizabeth I.

The physical and intellectual statute of Phelippes was described as "a small, lean, yellow-haired, short-sighted man, with pock-marked face, an excellent linguist, and, above all, a person with a positive genius for deciphering letters." [1]

Babington Plot

The original ciphertext sent by Anthony Babighton to Mary, Queen of Scots, with the Phelippes's postscript addition.

He is most remembered for his postscript to the "bloody letter" sent by Mary, Queen of Scots, to Anthony Babington regarding the Babington plot. When he sent Walsingham the letter proving Mary, Queen of Scots's complicity in the plot Phelippes had drawn a gallows on the envelope. According to historian Neville Williams,[2] the notes were smuggled to Mary via empty barrels from a brewer in Burton upon Trent who supplied the house at Chartley Manor where she was being held prisoner in the custody of Sir Amias Paulet. Phelippes was kept busy with a backlog of correspondence requested by Her Majesty whose letters contained day to day matters as well as those of a more sensitive type. Walsingham had to wait a whole seven months before he got what he wanted. This postscript asked Babington for the names of the plotters involved in the planned assassination of Queen Elizabeth I, and hence Francis Walsingham was able to prove Mary's direct involvement in the plot, and have her executed.

In popular culture

  • "The Chronicles of Christoval Alvarez" series of mystery-adventure novels authored by Ann Swinfen include Phelippes as a regular character.


  1. ^ Neale, John E. (1934). Queen Elizabeth. Alden press. pp. 270-275. 
  2. ^ Williams, Neville (1971) Elizabeth I, Queen of England Sphere ISBN 0722191537 p. 272

Further reading

  • The codebreakers, the comprehensive history of secret communication from ancient times to the internet (revised and updated 1996) - David Kahn ISBN 0-684-83130-9
  • Cryptology and statecraft in the Dutch Republic - Karl de Leeuw ISBN 90-5776-039-8
  • Spies & spymasters, a concise history of intelligence - Jock Haswell ISBN 0-500-01178-8
  • The Watchers, a secret history of the reign of Elizabeth I - Stephen Alford ISBN 978-0-141-04365-4

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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