Herb Aleksandra Jagiellończyka
<a href="//commons.wikimedia.org/wiki/User:Wereszczy%C5%84ski" title="User:Wereszczyński">Wereszczyński</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span> Own work, elements from Wikimedia Commons, sources: <a class="external autonumber" href="https://upload.wikimedia.org/wikipedia/commons/a/ab/Alexander_I_Jagiellon_seals.PNG">[1]</a> <a class="external autonumber" href="https://upload.wikimedia.org/wikipedia/commons/3/3e/Johann_Haller%2C_Commune_Incliti_Poloniae_regni_privilegium_constitutionum_et_indultuum_publicitus_decretorum_approbatorumque_%281506%2C_cropped%29.jpg">[2]</a>