Prince Leopold of Belgium (1901-1983) don of king Albert1st, future king Leopold III, photo by Keturah Collings, c. 1910
<bdi><a href="https://en.wikipedia.org/wiki/en:Keturah_Anne_Collings" class="extiw" title="w:en:Keturah Anne Collings"><span title="British artist">Keturah Anne Collings</span></a>
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<a rel="nofollow" class="external text" href="http://www.gutenberg.org/files/20521/20521-h/20521-h.htm">Gutenberg.org</a>. The New York Times: <i>Current History, A Monthly Magazine</i>, The European War, March 1915.