Need help please with identifying this cactus

dottyw · May 2023

I recently was given these 2 cacti ( first 2 pics) I was told that the ancestor ( great grand parent) of my cacti is in Rumania, many years old and huge, the flowers have an amazing smell, and that its owner built a special greenhouse for it. That my small plant will grow about 1 m tall in a couple of years. The last two pics with the flowering plants are from the parent plant of mine.