| Lambertus |
Fl. ca 635-705, bishop of Maastricht; patron of the
cathedral of Luik; patron of
Helmond.
Feast: 17 Sept. (translation: 31 May)
Patron of the Luik cathedral; patron of several churches in the Kempen (near Roosendaal and Wouw; see Woide, pp. 121-122).
An office for Lambertus is ascribed to bishop Stephanus of Luik, early 10th century; see AH 26, nr 79 (pp. 230-233). This office was well known in the Low Countries. See for this office among others:
 | B-Br 14650-59, ff. 37-39, 10th century |
| | NL-Uu 406 and younger manuscripts of Mariakerk, Utrecht |
Sequences for Lambertus (Christi laude predicemus) and Triumphus Lamberti (Letabundus laus beato) are in NL-HEESWab 19 and in other sources from the diocese of Luik. Seq. Stolam iocunditatis alleluia is in NL-Avu xv 05005.
 | Auda: Étienne de Liège, pp. 122-197 (edition: pp. 187-197) |
| | AH 26, nr 79, pp. 230-233 |
| | Mentioned in Hughes's LMLO, referring to AH 26 and Auda |