"Porto’s Botanical Garden is a space where three dimensions converge: recreation, history and botanics. It is not a very big garden – 4 ha to be precise – but it is full of old town charm.
The house the property are now runned by the Faculty of Sciences (Porto University) but were formerly owned by the Christ Order and after that by João Salabert. Finally, it belonged to the Andresen family, who sold it to the State of Portugal in 1949."
https://localporto.com/porto-botanical-garden/