What it really takes to get into Oswald’s, the world’s most secretive club where the richest gather

Oswald's, Robin Birley's Mayfair club, has been called one of the most exclusive private members' clubs in the world. With no social media, a no-photo policy and a nomination-only membership process, it has hosted royals, a pre-Coronation reception, political fundraisers and A-list celebrities since 2018.