In all the extant sources but the Libroni and DK-Kk MS Ny Kongelige Samling 1848 2°, this motet is transmitted followed by the motet M282 Ave virgo gloriosa Maria mater gratiae. According to WARD 1986, 511-512 O genitrix gloriosa and Ave virgo gloriosa Maria mater gratiae are two separate compositions (and not a motet divided in two parts, as in the CMM edition), as indicated by the absence of custodes between them in all but one source (MotettiA). RIFKIN 2003, 263 points out that the oldest source in which these two motets are paired is I-Fr Ms. 2794, “a source written at or near the French royal court, very probably between 1486 and 1488”. SCHMIDT 2017, 26, adds that “The piece had thus reached the French court by the 1480s, possibly brought there by the composer himself; by this time it had emancipated itself from the Milanese tradition and had become a proper motet”.

Concordances (of the two paired motets) in mss. that do not transmit motet cycles: DK-Kk MS Ny Kongelige Samling 1848 2°, pp. 286-287 (ascribed to Richafort); I-Fr Ms. 2794, ff. 9v-11r; I-Sc K.I.2, ff. 182v-184.