Coat of arms of Vytautas the Great with the Lithuanian <i><a href="https://en.wikipedia.org/wiki/Coat_of_arms_of_Lithuania" class="extiw" title="w:Coat of arms of Lithuania">Vytis (Waykimas)</a></i> and a standing knight of <a href="https://en.wikipedia.org/wiki/Family_of_K%C4%99stutis" class="extiw" title="w:Family of Kęstutis">Kęstutaičiai</a>, used during the <a href="https://en.wikipedia.org/wiki/Council_of_Constance" class="extiw" title="w:Council of Constance">Council of Constance</a> from 1414 to 1418.
<a href="https://en.wikipedia.org/wiki/Conrad_Gr%C3%BCnenberg" class="extiw" title="w:Conrad Grünenberg">Conrad Grünenberg</a> (died in 1494)
<a rel="nofollow" class="external text" href="https://www.digitale-sammlungen.de/en/view/bsb00035320?page=104,105">Das Wappenbuch Conrads von Grünenberg, Ritters und Bürgers zu Constanz</a> (page 104)