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Depicted person:  Ada King, Countess of Lovelace</div>
<bdi><a href="https://en.wikipedia.org/wiki/en:Alfred_Edward_Chalon" class="extiw" title="w:en:Alfred Edward Chalon"><span title="British artist (1780-1860)">Alfred Edward Chalon</span></a>
</bdi>
1840<div style="display: none;">date QS:P571,+1840-00-00T00:00:00Z/9</div>
<a rel="nofollow" class="external text" href="http://www.biography.com/people/ada-lovelace-20825323">Biography.com</a>