Marcos Tadeu, the seer, was born on February 12, 1977 in Jacarei, and was only 13 years old when the apparitions started. He is a humble, poor and simple boy. Before these appearances, he had known to pray only Our Father and Hail Mary. He was praying these prayers when Our Lady appeared for the first time inside a Church of Immaculate Conception in Jacarei's city. The first meesage was:
"-My child, my child! It is necessary to sanctify. The sanctity is a difficult way, but... it's end is real and glorious."
His mission given by Our Lady is introduce to the world all of appearances of Her that were forgotten and pursued besides to publish Her Grace and Mercy given in Jacarei Appearances: The Holy Peace Medal, The Gray Escapulary, Peace's hour, Saint Joseph's hour, The Holy Spirit hour, 'Setena'´, ´Trezena', all of prayers taught in Jacarei appearances and mainly The meditated Rosary which has been recording by Marcos Tadeu and contains before each mystery a message by Our Lady given around the world. Our Lady says that anybody had never done a Rosary like this before and says ether this Rosary is what pleaser her Immaculate Heart. He has had daily apparitions since March 06, 1993, and Our Lady confided to him 12 secrets and She will reveal more one to complete the 13 secrets to humanity, but Marcos Tadeu can't reveal them with out Our Lady's permission.