[Grove Music Online]: Several reliable sources attribute the Missa ‘Veni sponsa Christi’ to Lupus Hellinck; the ascription to Hesdin in I-Rvat C.S.17 probably reflects nothing more than a confusion between the two names.
V-CVbav-ms-Capp.Sist.17: Composer name in ms (index) and in ms = 'Hesdin' / Title as in ms (index) = 'Missa veni sponsa xpi[Christi]' / Kyrie I: [Superius], [Contratenor] and [Bassus]: 'Veni sponsa xpi/christi' / [Superius] and [Tenor2]: 'D[omi]ne Deus tacet' / Et resurrexit: [Superius] and [Contratenor]: 'Duo'