Black eagle, Basque nationalist flag, designed after the seal of Sancho III the Great.
Heralder
2019-09-19
Elements of File:Arrano Beltza.svg (<a href="//commons.wikimedia.org/wiki/File:Sign_of_Sancho_VII_of_Navarre.svg" title="File:Sign of Sancho VII of Navarre.svg">File:Sign_of_Sancho_VII_of_Navarre.svg</a>), „Sign of Sancho VII of Navarre“, modified, <a rel="nofollow" class="external free" href="https://creativecommons.org/licenses/by/3.0/legalcode">https://creativecommons.org/licenses/by/3.0/legalcode</a>