Joseph Muzquiz was a Spanish Catholic priest and a pioneering member of Opus Dei who dedicated his life to expanding the movement's presence internationally. Born in 1912 in Badajoz, he pursued diverse academic interests, eventually earning doctorates in civil engineering, history, and canon law. After joining the movement in 1940, he played a vital role in establishing its foundations across the United States, Canada, Japan, and Venezuela. He died in 1983 in Plymouth, Massachusetts, following a sudden heart attack during a teaching session.
Life and work

While studying engineering in Madrid, Muzquiz met Josemaría Escrivá, leading him to join Opus Dei. He balanced his religious vocation with professional duties, working as a highway engineer to help rebuild Spanish infrastructure. As one of the first three members of the organization to be ordained, he traveled extensively to plant the seeds of the movement in various countries. His multifaceted expertise as a jurist and historian supported his mission of evangelization among colleagues.
Veneration
The Archdiocese of Boston officially opened the cause for his canonization in 2011. Because of this process, he is recognized as a servant of God. His legacy remains tied to the global growth of Opus Dei and his efforts to promote the canonization of the movement's founder.
