Although "patrimony" is a false friend for "patrimônio", it is not the most common translation. "Patrimony" is primarily used in the sense of property inherited from an ancestor and property belonging to a church.
There are multiple definitions - click on the translation that matches your context.
property or legal rights inherited from your father or from an ancestor, especially from a male ancestor
This is a classic example of patrimony being used to deprive coheirs of their rightful inheritance.
the estate or property that belongs to a church as a result of an endowment (=money or property left to provide an income)
The property of a dissolved parish shall pass to the patrimony of the diocese.
the sum total of a person's real property, personal property and other rights
Reimbursement shall be made from the patrimony of the spouse who owes reimbursement.