Edward, depending on which Edward you're referring to, could have lost either his left arm or his right arm.
Here are a few examples:
- Edward the Confessor, the last Anglo-Saxon king of England, is believed to have lost his right arm in a hunting accident.
- Edward I, also known as Edward Longshanks, was a king of England who did not lose an arm.
- Edward IV was a king of England known for his military prowess and did not lose an arm.
To provide a more definitive answer, please specify which Edward you're interested in.