![Inside a crypt](/sites/default/files/styles/features_image_small/public/2024-07/GreaterLondonCLERKENWELLStJonPriory%28oliverlackSTAFF%291.jpg?h=71976bb4&itok=nE4gUD00)
The little-known London church behind St John’s Ambulance
St John’s Ambulance is an iconic institution, known for providing first aid at public events like village fairs and sports competitions. But behind the service of these committed volunteers is a history that spans a millennium, and a London church at the heart of it.