Princess Kate found herself trapped at a 2013 St Patrick's Day ParadeTrust Princess Catherine to make a chic recovery and smile throughout it all! Kate couldn't help grinning as she tried to carefully remove her heel from a grate at Mons Barrack's Aldershot during the St Patrick's Day Parade in 2013. Prince William was on hand to support her quick manoeuvre as she soon released herself from the grate, with shoe intact, and proved her elegant athleticism in the process.