King Alfonso XIII of Spain and his mare "Countess" playing polo at the elitist Real Club de la Puerta de Hierro in Madrid, Spain.
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external autonumber" href="https://www.rct.uk/collection/2807074/king-alfonso-xiii-1886-1941-playing-polo">[1]</a>