Who wrote the epitaph on Shakespeare's grave?

Shakespeare wrote his own epitaph because during his time, when the graveyard was full, people would dig up someone's corpse and burn it so that another could be buried in that person's place. This disgusted Shakespeare, and he didn't want this type of disrespect after his death. His epitaph reads as follows:

"Good Friends, for Jesus' sake forbear,

To dig the bones enclosed here!

Blest be the man that spares these stones,

And curst be he that moves my bones."