Founded on 8 January 1546 by order of Pope Paul III. Elevated to an archdiocese on 13 January 1848 by Pope Pius IX. The seminary is in the care of the Vincentians. Suffragen dioceses includeSee also
- Ambato
- Guaranda
- Ibarra
- Latacunga
- Riobamba
- Tulc´n
New Catholic Dictionary