A Pontifical Delegate is a cleric who is delegated by the Pope of Rome.
Specifically, this title is used for the following ecclesiastical offices in the gift of the Pope (who is Pontifex Maximus, hence the adjective) :
a prelate (usually Archbishop of Cardinal) appointed to represent the Holy See in the administration of certain papal minor basilicas, notably:Pontifical Delegation for the Basilica of St. Nicholas of BariPontifical Delegation for the Shrine of the Holy House of LoretoPontifical Delegation for the Basilica of St. Anthony of PaduaPontifical Delegation for the Shrine of Our Lady of the Rosary of Pompeiia papal legate, papal diplomat, such as a Nuncioan extraordinary papal representative to a religious congregation, e.g. the thirty third General Congregation of the Jesuitsa papal representative, appointed to exercise certain rights reserved, thus limiting the authority of a Major archbishop, as in the case of the Syro-Malabar Catholic Church