3 monograms of <a href="//commons.wikimedia.org/wiki/Henry_IV_of_France" title="Henry IV of France">the king of France Henri IV</a> in the eastern half of the southern side of the Cour Carrée du Louvre, Paris, France : HDB, H, HGG.
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<a href="//commons.wikimedia.org/wiki/User:Tangopaso" title="User:Tangopaso">Tangopaso</a></div>
<span class="int-own-work" lang="en">Own work</span>