[4] The Diocese of Linz and St. Pölten von Passau was effectively founded in 1783 by a decree of the Emperor Joseph II (1741–90) without advance approval from Rome.

[2] The first bishop was Ernest Johann Nepomuk, Imperial Count von Herberstein, enthroned on 1 May 1785.

[6] Ludwig van Beethoven wrote the three Equali for four trombones ("Drei Equales", WoO 30) for performance in the cathedral on 2 November 1812 (All Souls' Day).

[1] During Bruckner's tenure as organist he studied under the contrapuntalist Simon Sechter, and in 1860 became the conductor of the Frohsinn choral society.

[8] On 12 May 1861 the Frohsinn performed Bruckner's seven-part Ave Maria (WAB 6) in the cathedral, a breakthrough composition that became a favorite of the composer.

[13] The exterior of the church is relatively plain, with two towers on either side of the main door, topped with onion domes.

[3] The stalls in the presbytery were carved by local artists, and are decorated with the faces of monsters and dwarfs.

[a][3] The Baroque organ was built by Franz Xaver Krismann, with alterations requested by Bruckner.