Concordances based on BOORMAN 2006, 930 (who gives a single foliation for "O genitrix gloriosa" and "Ave virgo gloriosa Maria mater gratiae" and does not specify that DK-Kk MS Ny kongelige Samling 1848, 2° only contains the first motet). In all the extant sources but the Libroni and DK-Kk MS Ny kongelige Samling 1848, 2° this motet is transmitted paired with the motet "Ave virgo gloriosa Maria mater gratiae" (see [I.109] and [II.10]). 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 supposed by FINSCHER 1954, 365 and in the CMM edition). This is shown by the absence of custodes between them in all but one source (Motetti A). 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". The attribution to Richafort of "O genitrix gloriosa" in DK-Kk 1848 has to be discarded, because of the late date of this source (see Ludwig Finscher, s.v. "Compère, Loyset" in "MGG Online").