Bishop of Trier and Köln, early 4th century. Patron of Tongeren.
Feast days: in
Strubbe & Voet several days are mentioned.
19 September in Luik (this is in accordance with an intonation book NL-SHsj 216-1 and an office book NL-SHra IllLVrBr 70 of 's Hertogenbosch).
Rumour says that Remigius of Mettlach has composed chants for Maternus, though Hughes finds this unlikely (Haggh, pp. 41 and note 55).
An office (AH 28: 21; LMLO MF-31) for him is found in:
|NL-DHk 70 E 4, Fragmenta Tungrensia and winter antiphoner B-TO 63, both from Onze-Lieve-Vrouwekerk in Tongeren|
|NL-SHsj 216-1 from St Janskerk in 's Hertogenbosch|
and in Rhineland sources and sources from the diocese of Luik.
The hymn Ad honorem conditoris (to the melody of Pange lingua) is on f. 299r of B-TO 63, from OLV-kerk in Tongeren. The hymn Treviris dum esset stans is mentioned in AH, 4, nr. 388, referring to Cod. Pragens. XIII G g saec. 15.
Lessons for Matins are in: NL-DHk 71 A 2, Lectionarium-Passionale, Servaaskerk, Maastricht, 15th century.
The sequentia Sion gaudens flore verna is in NL-HEESWab 19 and NL-Avu xv 05005.