All the photos we have of 'Atsumori' over the years have flowers before the leaves came out, and the flowers of that cultivar are smaller than these seem. I think these are 'Ichiyo', and that seems to ring a (church) bell for me, but I can't find them posted or on the map. Okay, I have now found some photos I took there in 2015 but never posted, where I named them 'Ichiyo'. I love the photo.
