I just added the below image and caption to the Trombone History Timeline, 17th Century (1601-1625) and to the blog post, Pick That Thing Up and Play!

c. 1620—Antwerp, Belgium: In a painting called Minerva Visits the Nine Muses, attributed to Hendrick van Balen and Jan Brueghel the Elder, a trombone rests upon the ground among several other musical instruments (see below image; public domain).