Joaquín Sáenz y Arriaga

Joaquín Sáenz y Arriaga (12 October 1899 – 28 April 1976) was a Mexican Catholic priest and theologian sedevacantist.

Excommunication
In response to Sáenz's excommunication, Father Moisés Carmona, Sáenz's associate and disciple, wrote:

They excommunicated you for your fidelity to Christ, His teachings and His Church. Blessed excommunication! As long as it is for this reason, may all [such] excommunications come upon me!

Unión Católica Trento
In the 1970s, Sáenz, together with Carmona and Father Adolfo Zamora, founded the Unión Católica Trento (Tridentine Catholic Union).

Death
In his last testament, written on 25 April 1976, Sáenz wrote:

My life and all that is most precious to me I have sacrificed for Christ, for the Church, and for the Papacy [...].

and he added:

May the last cry of my soul be that of our Mexican martyrs: Long live Christ the King, Long live the Virgin of Guadalupe!

He died of prostate cancer, three days after, on 28 April 1976.