> -----Original Message-----
> 
> Could we start with a very quick yes/no from William and Mary as to
> whether they propose to re-nominate?
> 

"The phrase William and Mary usually refers to the coregency  over the Kingdoms of England, Scotland and Ireland, of King William III and Queen Mary II. Their joint reign began in February 1689, when they were called to the throne by Parliament, replacing James II & VII, Mary's father and William's uncle/father-in-law, who was "deemed to have fled" the country in the Glorious Revolution of 1688. After Mary died in 1694, William ruled alone until his death in 1702. Their rule was the only period in British history in which "joint sovereigns" with equal powers were allowed to reign"

(from Wikipedia)

Just a little history for fun... would either of them like being called "King William" and "Queen Mary"? :-) 
Mary has to promise not to die, however.