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Cathedral · Tuam

The Cathedral of the Assumption, Tuam

Tuam has two cathedrals, and the reason is in the sixteenth century. When Elizabeth I appointed William Mullaly Archbishop of Tuam for the established church, the Catholic clergy lost St Mary's, the fourteenth-century cathedral on the site of an older one. Nearly three hundred years passed before the Penal Laws relaxed enough for a replacement, and the Cathedral of the Assumption is that replacement, the seat of an archdiocese that reaches across half of Galway and Mayo.

Checked against the source on 2026-09-19.

The Cathedral of the Assumption on Bishop Street
The Cathedral of the Assumption on Bishop Street
Andreas F. Borchert, CC BY-SA 4.0 via Wikimedia Commons

Cathedral of the Assumption of the Blessed Virgin Mary, Saint Marys Cathedral, Tuam High Cross on the 3D model; tap a pin for its page and directions.

Who lies here

Three archbishops are buried at the cathedral: John de Burgh in the Oratory of St Jarlath, John MacHale, the great nineteenth-century archbishop, before the high altar, and Joseph Cunnane in the grounds. The archdiocese takes in half of County Galway, half of County Mayo and part of Roscommon.

The other cathedral

St Mary's, now the Church of Ireland cathedral, stands a few streets away with its twelfth-century chancel arch, and the Tuam High Cross is between them. The model on this page pins both cathedrals and the cross, and the history page for Tuam carries the town's story from Jarlath onward.

Questions people ask

Why does Tuam have two cathedrals?
The medieval St Mary's passed to the established church under Elizabeth I; Catholics built the Cathedral of the Assumption once the Penal Laws relaxed, almost three centuries later.
Who is buried in Tuam Cathedral?
Archbishops John de Burgh, John MacHale, before the high altar, and Joseph Cunnane in the grounds.
How big is the Archdiocese of Tuam?
It covers half of County Galway, half of County Mayo and part of County Roscommon.

Written from Wikipedia, "Cathedral of the Assumption of the Blessed Virgin Mary, Tuam" (CC BY-SA 4.0), read on 2026-09-19, and from the OpenStreetMap places on the model. Nothing has been added from memory; follow the source for its footnotes.