Bergoglio doubts that the Fathers of the Virgin Mary are the grandparents of Jesus

Bergoglio questions the dogma of the Divine Motherhood of Mary.

The Dogma of the Incarnation Rests on the Dogma of the Divine Maternity of Mary.

7 Many deceivers have gone out into the world, those who do not confess that Jesus Christ has come in the flesh; any such person is the deceiver and the antichrist! 2 John 1

Rorate Caeli

Is the All-Holy and Ever Virgin Mary truly the Mother of God -- and are therefore her parents truly Jesus' Grandparents? Francis isn't sure

That at least -- that he isn't very sure -- is the most charitable or at least the most reasonable explanation of the use of scare quotes (" ") in his official tweet on the Feast of St. Anne:

Yet, as defined by the Council of Ephesus, Our Blessed Lady truly is the Mother of God -- so obviously her parents truly are the Grandparents of Our Lord Jesus Christ, not His "grandparents"...

Jesuits... 

This tweet also promotes the heresy of naturalism and the Masonic brotherhood of religious indifferentism.
At the same time that Bergoglio denied the supernatural right to the grandparents of Jesus Christ, he took advantage to promote the Masonic fraternity.

The Council of Ephesus declared, "If anyone does not confess that the Emmanuel is truly God and therefore that the holy Virgin is the Mother of God (Theotokos) (since she begot according to the flesh the Word of God made flesh), anathema sit."

Pope Leo XIII: "There can be nothing more dangerous than those heretics who admit nearly the whole cycle of doctrine, and yet by one word, as with a drop of poison, infect the real and simple faith taught by our Lord and handed down by Apostolic tradition." -Auctor Tract, de Fide Orthodoxa contra Arianos.