Help me identify this please

[SJ89SJ]

Found this under lots of gravel and weed membrane in my new house and as I'd left it exposed to the sun it grew.
Any ideas?

My app is saying cherry plum tree. Don't know if it's correct.

Might be a rambling rose. They are tough AF.

I would say some sort of prunus sucker.

I would say some kind of plum. My one throws up hundreds of suckers like that.

Damson.

I would say Prunus sucker too.

Thanks everyone, the only thing in the border is a possible peach/plum tree so this works out although the leaf shape did look more rounded and rose like. I'll keep it our of curiosity for now!