From the BBC’s website

Princess Anne’s son, Peter Phillips, is to marry Canadian management consultant Autumn Kelly at Windsor Castle later.

The couple, both 30, who met while working at the 2003 Canadian Grand Prix, will exchange vows at the Berkshire castle’s St George’s Chapel.

Miss Kelly has given up her Catholic faith to allow her fiance to retain his place as 11th in line to the throne.

Well, I suppose if Paris was worth a mass then Windsor is worth a matins.