Was the downfall of Richard III caused by a Strawberry?

Richard III's actions in the summer of 1483, when he unexpectedly put aside his twelve-year-old nephew and became King of England, are considered to be out of character. Could a food allergy have triggered the series of events that lead to the fall of the House of York?

Here's my piece in the New Statesman:

http://www.newstatesman.com/ideas/2013/08/was-downfall-richard-iii-caused-strawberry

Royal Babies; those we've forgotten and how times change.

Here are the links to two new pieces I've written recently:

How do the White Queen and the Duchess of Cambridge's baby experiences compare?

http://www.royalcentral.co.uk/blogs/how-times-change-two-royal-births-edward-v-1470-and-george-prince-of-cambridge-14075

Some of those who were born to be great but never made it- forgotten royal babies:

http://www.newstatesman.com/ideas/2013/07/forgotten-history-royal-babies-youve-never-heard