The abbey is a famous location in Italy. The battle was ferocious.
I'm pretty sure that's where a bunch of Germans held out in a mountaintop Abbey of some kind. To displace them required that US forces bomb a densely-populated church area without mercy, inflicting thousands of civilian casualties.
When Germans want to allege "the Americans were JUUUUST as bad", they usually talk about this place.
I'm taking NO POSITION, you understand.