She sees her older brother as her 'protector'.
a 'protector' of free speech
ear 'protectors'
(..) for over centuries. They are the guardians of the royal bloodline. The keepers of the proof of our true past. They are the protectors of the living descendants of Jesus Christ... ...and Mary Magdalene. Sir Leigh? Sometimes I wonder who is serving whom. (..)2006 The Da Vinci Code