Final answer:
The couple from Greek mythology who were transformed into an oak and a linden tree after dying together are Philemon and Baucis. They hosted Zeus and Hermes unknowingly and were granted their wish to die together due to their hospitality.
Step-by-step explanation:
The devout couple referred to in the question who received their wish to die at the same time and were transformed into a pair of oak and linden trees are Philemon and Baucis from Greek mythology. They received Zeus and Hermes hospitably without knowing their true divine identities, treating them with kindness and generosity. As a reward for their hospitality, Zeus granted them their wish to die at the same time so they wouldn't have to live without each other. After their death, they were transformed into an oak and a linden tree, symbolizing their lasting bond.
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