Guardian : a person who protects or defends something.Saint : a person acknowledged as holy or virtuous and regarded in Christian faith as being in heaven after death.Patron : a person who gives financial or other support to a person, organization, or cause.Friend : a person with whom one has a bond of mutual affection, typically one exclusive of sexual or family relations.Benefactor : a person who gives money or other help to a person or cause.Synonym of Benefactor is Patron