A cathedral is a Christian church that serves as the official seat of a bishop, called the cathedra. It is usually the main church of a diocese, so the bishop presides there and it functions as the “mother church” for the local region.

Quick Scoop

What makes a cathedral a cathedral is not mainly size, age, or beauty. It is the bishop’s seat and the church’s role in diocesan life.

In plain terms

  • Bishop’s seat: The defining feature is the cathedra, or bishop’s chair.
  • Central church: It serves as the primary church in a diocese.
  • Worship and ceremony: It is where major services, ordinations, and diocesan celebrations often happen.
  • No special architecture required: A cathedral does not have to be huge or Gothic; canon law does not require a particular style.

What it is not

A building is not a cathedral just because it looks grand, old, or famous. Those qualities may make it memorable, but the title comes from its church role and the bishop’s presence in the diocese.

Bottom line

If you want the simplest answer: a cathedral is a church with a bishop’s seat.