Only four grisailles (monochrome paintings) by Bruegel are known, three on religious themes, and this panel, once in the collection of Charles I of England, representing a trio of Landsknechte, the mercenary foot soldiers whose picturesque costumes and swashbuckling airs provided popular images for printmakers in the sixteenth century.
Works in the public domain are those whose intellectual property rights have expired, have been forfeited, or are inapplicable. Artworks and writings enter the public domain when their copyright expires. Determining when a work's copyright expires is complex, but in general a work is in the public domain in the U.S. when it was created before 1923, and in most countries when the artist/author has been dead for 70 years. For these works, unlimited copy, distribution, modification, and reuse are allowed for free. More About Public Domain