[1] Zubero grappled with tuberculosis as he underwent his studies in Rome where he was ordained to the priesthood and he became noted for his staunch devotion to the Mother of God.

[2] Zubero entered the Trinitarian Order in Algorta on 30 September 1914 and spent his period of novitiate in the house of La Bien Aparecida in Cantabria.

[2] Zubero received the religious name of "Domingo of the Blessed Sacrament" at the time of his initial profession on 14 December 1918.

He professed his solemn vows on 23 October 1922 in San Carlo alle Quattro Fontane and was later ordained to the priesthood on 9 August 1925 in the church of Santi XII Apostoli.

Pope John Paul II named Zubero as Venerable on 11 October 1980 after he had confirmed that the late priest had lived a life of heroic virtue.