Lost dark blue winter coat with hood and pockets near a bench in Markeaton Park, Derby.

I was walking my dog in Markeaton Park in Derby last Saturday and must have dropped my favorite dark blue winter coat. It has a hood and some pockets, and I can't remember if I left it on a bench or dropped it while walking. I'd really like to get it back, as it has sentimental value. If anyone finds it, please let me know.