architecture · ornament ~ grotesque · (decorated) ceiling · ornament ~ medallion
<bdi><a href="https://en.wikipedia.org/wiki/en:Giovanni_Battista_Naldini" class="extiw" title="w:en:Giovanni Battista Naldini"><span title="Italian Mannerist painter (1535-1591)">Giovanni Battista Naldini</span></a>
</bdi>
ca. 1560 - 1561 ?
<a rel="nofollow" class="external free" href="https://sammlung.staedelmuseum.de/de/werk/groteskengewoelbe">https://sammlung.staedelmuseum.de/de/werk/groteskengewoelbe</a>