Final answer:
Queen Elizabeth I of England encouraged piracy of Spanish treasure ships. The three most renowned 'sea dogs' that executed these missions were Sir Francis Drake, Sir John Hawkins, and Sir Walter Raleigh.
Step-by-step explanation:
The English queen who encouraged piracy of Spanish treasure ships was Queen Elizabeth I. This activity was part of the naval warfare waged against Spain during her reign. She authorized privateering missions to disrupt Spanish trade, which is considered a form of state-sponsored piracy. The term 'sea dogs' refers to the English mariners who carried out these missions. The three best-known 'sea dogs' under Queen Elizabeth I were Sir Francis Drake, Sir John Hawkins, and Sir Walter Raleigh.
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