I think it was also on her hat at both of these events, although it is hard to see in these photos. At Zara & Mike Tindall`s wedding in Jul 2011 & at the Diamond Jubilee service at St Pauls Cathedral in 2012.
--Previous Message-- : : : I have seen Lady Sarah wear this brooch on : her hat on several occasions. This photo was : taken at Royal Ascot races. : : : :