Painted by  Amos Cassioli (1832 - 1891).
The Carroccio of Legnano
<bdi><a href="https://en.wikipedia.org/wiki/en:Amos_Cassioli" class="extiw" title="w:en:Amos Cassioli"><span title="Italian painter (1832-1891)">Amos Cassioli</span></a>
</bdi>
Amos Cassioli