<bdi><a href="https://en.wikipedia.org/wiki/en:August_Matthias_Hagen" class="extiw" title="w:en:August Matthias Hagen"><span title="Baltic German painter and university teacher (1794-1878)">August Matthias Hagen</span></a>
</bdi>
<a rel="nofollow" class="external text" href="https://www.muis.ee/museaalview/249075">EKM j 190:121 M 555</a>