According to my Norton Shakespeare, A Midsummer Night's Dream, written in the same year as Romeo and Juliet, features a play-within-a-play telling the story of Pyramus and Thisbe:
Pyramus and Thisbe, hero and heroine of a love-story almost unknown except from Ovid, Metamorphoses (4.55 ff.), who says (53) that it is not a common tale. They were next-door neighbours in Babylon, and, as their parents would not let them marry, they talked with each other through the party-wall of the houses, which was cracked. Finally, they arranged to meet at Ninus' tomb. There Thisbe was frightened by a lion coming from its kill; she dropped her cloak as she ran and the lion mouthed it. Pyramus, finding the bloodstained cloak and supposing her dead, killed himself; she returned, found his body, and followed his example. Their blood stained a mulberry-tree, whose fruit has ever since been black when ripe, in sign of mourning for them.
Hmm, sounds familiar...
By the way, the hardcover Norton Shakespeare has been deeply discounted (as they say) at Amazon. If you don't have a complete Shakespeare, now's your chance to get a good one for peanuts. The in-line glosses alone are worth the price of admission, and the paper and printing are excellent. I'm seriously considering trading in my floppy (but apparently sturdy) paperback copy for the hardcover...
