- 5 updates
Among the crowds on The Mall today there will have been many people claiming that they're the greatest royal fan. But that title must surely belong to Margaret Tyler who has the biggest collection of royal memorabilia in the country - more than 10,000 items.
London Tonight's Business Correspondent Glen Goodman reports:
Glen Goodman caught up with ultra-royalist Margaret Tyler on The Mall earlier, after she'd waved the Queen past in her limousine.
Clearly this year's royal occasion did not disappoint.
Margaret Tyler is so devoted to the British monarchy that she's even named her rooms after royal residences - Buckingham, Clarence, Balmoral, Windsor and Sandringham.
Now she is offering fellow royalists the chance to stay in the "Sandringham suite", as she explained to our correspondent Glen Goodman.
From the photos of her collection, it is clear just how devoted Margaret Tyler is to the Royal Family.
The long-standing monarchist from Wembley has extended her house to make room for her hoards of regal memorabilia.
One person who would never have dreamed of missing today's celebrations is Margaret Tyler from Wembley.
She has 10,000 pieces of royal memorabilia and says she will never stop collecting.
Glen Goodman was given the full tour earlier this week.