What’s under the Chancery Place Flowerbed?

We have a very nice wildflower display now in Chancery Place, enormously enhancing the beauty of the south-east corner of the Four Courts site, but what lies beneath it? Watch the below video to find out about the lost chapel of Mass Lane, visited by not one but two kings. Was it the original chapel of St Saviour’s Priory, the original occupant of the Four Courts site? Does any of it still remain? Who wants to start digging up the flowerbed first?