Today I added this image and caption to the Trombone History Timeline (16th century) and Angel Trombonists Throughout History (where there are now 75 images).
c. 1566—Celle, Germany: The interior of Celler Schlosskapelle (the chapel of Celle Castle) is completely refurbished. It is probably at this time that an angel with trombone is added to the chapel (see below image; public domain).