Sorry for delay - I was watching Le Tour !
No, for some reason my parents did not plant a greengage plum tree, just mirabelles; have plenty of pears to look forward to later on, williams, conference, and two other type (one reddish one) but I don't know the name.
Could plant a greengage though, I usually plant one tree every year on the 4th November.- just a custom but I have so many trees already that the leaves in Autumn are a nightmare!