I visited my first St Mary's in Derbyshire when I went to Staffordshire in February 2019 and my "assistants" got it wrong (again) and thought Marston-on-Dove was in Staffordshire as well (It's a bit complicated 'cos I've now also visited Rolleston-on-Dove and that IS in Staffordshire!).

I've now been back to Derbyshire (I said I would) and have added seven more lovely St Mary's churches to this list. Now it's 2021 and I've added another (Denby, number 323, if you're keeping count)!