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Royal Oak is one of the most common pub names and is found throughout the country, and it primarily refers to an actual historical event. The celebrated historical event was the escape of Charles II after his army was defeated at Worcester in 1651, when he climbed into an oak tree at Boscobel to hide from the Parliamentary soldiers.

It also refers to one or other of the various Royal Naval warships that bear the name, and there is also a link to folklore too, since May 29th was celebrated as Royal Oak Day from 1661 until late into the 19th century.