Called to arms!

A manuscript verso page. In the center of the page, an armored knight holds up a flag with a blue-and-white coat of arms. He looks over his right shoulder with his left hand outstretched, as though interrupted. He stands on a small patch of grass. Beneath the image, there is a gothic capital A; in the upper right corner of the page, “VIII” is written in light pencil.
Anonymous sixteenth-century Swiss author/artist(s), Silbereisen: Chronicon Helvetiae, Part I, Aargauer Kantonsbibliothek, MsWettF 16:1 via e-codices (CC-BY-NC 4.0). p. viii.
Horn Call Bozza En Foret 2 F Major by TaranP via freesound.com (CC-BY 3.0).

When I embarked on this assignment, I knew immediately that I wanted to find a premodern manuscript image to use, because I have a background in European medieval history and love book history. Fortunately for all of us, there are thousands of digitized manuscripts online, and many of the holding institutions enter the scans into the public domain or share them under Creative Commons licenses. 

While looking through the holdings of the Virtual Manuscript Library of Switzerland, I came across the fabulous gentleman pictured. Our bold knight is the frontispiece of a lengthy chronicle about the convocation of the Swiss Confederacy and the subsequent Burgundian Wars (1474-77). He seems paused mid-motion, as if he heard a sound, so I searched for a Creative Commons sound effect that might suit that mood. I settled on a short piece of modern music played on French horn, which is rallying and optimistic but also, to my ear, clearly excerpted from a larger work.