The Koblenz fragments (for whose contents, see below) consist of the front and rear pastedowns (or, following the nomenclature of the Landeshauptarchiv, ‘Spiegel 1’ and ‘Spiegel 2’) used in the binding of a manuscript copy of sermons (‘sermones de tempore’, from the first Sunday of Advent to Palm Sunday) by the Austin friar Jordan of Quedlinburg (Iordanus de Quedlinburgo). Also known as Iordanus de Saxonia, Jordan of Quedlinburg was a prominent and highly influential member of his order in the German-speaking lands during its heyday in the early to mid 14th century. The two folios are still in situ in a 15th-century binding. Overgaauw’s catalogue indicates that there are additional fragments (parchment strips) taken from the same or other music manuscripts that have been worked into the binding of Best. 701 Nr. 243 as binding reinforcements (sewing guards).
Contents: Spiegel (= Pastedown) 1: … turris iustorum / Gaude virgo / O Xpisti pietas.Tenor 3vv motet Concordances: B-Br 19606, recto (no.5); D-DS 521, fol.192r (triplum text paraphr.); D-DS 2653, fols.74v–75r (triplum text paraphr.)
Spiegel (= Pastedown) 2: Firmissime / Adesto / … 3vv motet Concordances: F-Pn fr. 146, fol.43r; B-Br 19606, recto (no.4); GB-Lbl Add. 28550, fols.43v–44r (intabulation); D-DS 521, fol.228r (triplum text only) [olim A-Wn 7977 (motetus text)8]