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Why is Thomas Becket honored in both the Roman Catholic Church and the Anglican Communion?

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St. Thomas Becket Murder of St. Thomas Becket, illustration from an English psalter, c. 1200; in the British Library.

Thomas Becket is honored as a saint and martyr in both the Roman Catholic Church and the Anglican Communion because he died in defense of the church's authority and independence.12

As the archbishop of Canterbury, Becket engaged in a prolonged and bitter dispute with King Henry II regarding the rights and privileges of the church, including the papal authority to oversee ecclesiastical matters. This conflict culminated on December 29, 1170, when four knights murdered Becket inside Canterbury Cathedral.132

Becket’s final words expressed his willingness to accept death in defense of the church of Christ. His steadfast commitment to his principles, even at the cost of his life, led to his veneration across these traditions. He is also recognized as a patron saint of diocesan clergy.12