428-year-old secret file: Elizabeth I's spy network revealed.
According to the findings of historian Stephen Alford,
A single page titled Names of Intelligencemen details the secret network, that spymaster Robert Cecil set up to spy on European rulers
Although Robert Cecil's official position was as secretary of state to Elizabeth I, he aimed to strengthen England's defenses after the, attack of the Spanish Armada in 1588 with this secret spy network