St. Josaphat (1580-1623)
After Josaphat entered a Basilian monastery and was ordained a priest, he became the superior for several monasteries, a bishop, then an archbishop. He prayed constantly for the extinction of the Eastern Schism, and labored zealously for Church unity and the political rights of clergy. He was a martyr.

Reflections from the Saints

I am ready to die for the holy union, for the supremacy of Saint Peter, and of his successor the Supreme Pontiff.
– St. Josaphat