Please help ID this tree

Please help ID this tree

Observation - Please help ID this tree - UK and Ireland. Description: I'm trying to ID this tree to help with the identification of the fungus seen in one of the photos. I think it is in the Rosaceae family, maybe a Prunus. Your comments and suggestions would be very helpful.

I'm trying to ID this tree to help with the identification of the fungus seen in one of the photos. I think it is in the Rosaceae family, maybe a Prunus. Your comments and suggestions would be very helpful.