<bdi><a href="https://en.wikipedia.org/wiki/en:Louis_Gurlitt" class="extiw" title="w:en:Louis Gurlitt"><span title="German-Danish landscape painter (1812-1897)">Louis Gurlitt</span></a>
</bdi>
Probably 1850
<a rel="nofollow" class="external text" href="http://www.kettererkunst.com/details-e.php?obnr=115000008&amp;anummer=422&amp;detail=1">Ketterer Kunst, München, 22. Mai 2015, lot 286</a>