According to the Internet source given below, Giovanni Giacomo de Antiquis was an Italian composer who mainly wrote choral music. Some of his compositions are contained in Il primo libro a due voci de diversi autori di Bari (Venice 1585).

Websites:
	Giovanni Giacomo de Antiquis	Biography by wikipedia.org.

Recorder Sheet Music

8 two-part Ricercare (D/A) 20 pages. Publisher: Ut Orpheus (HS 01)