Portrait of Roelof Bicker by Jacobus Houbraken dated 1780. Notes on the engraving state that Jacobus Houbraken made the engraving when he was 82 years old, and the painting is a detail from the large painting by Bartholomeus van der Helst hanging in the Amsterdam city hall, showing Bicker as captain of the civil guard.
<bdi><a href="https://en.wikipedia.org/wiki/en:Jacobus_Houbraken" class="extiw" title="w:en:Jacobus Houbraken"><span title="Dutch engraver">Jacobus Houbraken</span></a>
</bdi>
1780<div style="display: none;">date QS:P571,+1780-00-00T00:00:00Z/9</div>
<span class="int-own-work" lang="en">Own work</span>