There’s very little information available about this Flemish composer he’s known to have been active in Leiden and was among the copyists who produced the Leiden choirbooks in which some of his works including this setting of Introit for Corpus Christi can be found. His entry in Grove concludes by describing him as "an uneven composer, but at his best his music is very fine indeed". ‘Very fine indeed’ seems to me to be a good description of this four-part setting of Cibavit eos, the introit for the Feast of Corpus Christi. Enjoy :-)
Johannes Flamingus (fl 1565–73): Cibavit eos
Performers: Egidius quartet and college directed by Peter de Groot.