You know the ongoing controversy about whether or not Shakespeare really is the author of all his works? Here's a synopsis of the other possible candidates:
http://www.onlineshakespeare.com/whowrote.htm
If Shakespeare didn't write Shakespeare, then who did?
Since Shakespeare's four centuries' ago, hypotheses put forward are that: Francis Bacon wrote Shakespeare, Edward de Vere (Earl of Oxford) wrote Shakespeare, William Stanley (Earl of Derby) wrote Shakespeare, Roger Manners (Earl of Rutland) wrote Shakespeare, Christopher Marlowe wrote Shakespeare, several of these (and others) wrote Shakespeare or that Shakespeare himself stole others' works!
It's not really a "controversy". Those who believe he didn't write his works are firmly on the marginal crank fringe, along with those who believe Jack Kennedy escaped Dallas and Neil Armstrong faked the moon landing.