Therese Merkel told her Twitter followers how she disguised herself as a bush to watch her sister getting proposed to.
The then-actress was also forced to remove a fake engagement ring during filming in case onlookers thought the royal had proposed.
"The idea was to take as many photos, in more daring scenarios, until I found the perfect moment to propose."
Jon Blaze, from Texas, USA, used the Strava app – a GPS service which records cycling and running routes on a map – to carry out the proposal
A university graduate, 25, has revealed she is to marry her former professor, 71, after seven months of dating. Cameron Platt, who recently graduated with a masters degree from Oxford University, announced she is engaged to Lee Clark Mitchell – who is a professor in English. The couple – who have a 46-year age gap – met when Cameron took one of Lee’s classes as an undergraduate at Princeton University in the United States five years ago.