This three-nave Neo-Renaissance basilica with a semi-circular apse and two 67m high towers is dating since 1889 (building started in 1883).

The church was designed by Gustav Meretta, the official architect of the Archbishop of Olomouc, and the interior by Max von Ferstel.

On May 30, 1996, Pope John Paul II established the Diocese of Ostrava-Opava, and soon after the basilica has been dignified into a cathedral.

The foundation stone was laid by Mayor Anton Lux and the Reverend Josef Spurný on October 4, 1883.

It was the supervisory and executive bodies, which were often the purchaser of furniture projects and new churches, significantly encroached into their final form.