Map of provinces of the United Kingdom of the Netherlands, 1815-1830.
<p>Original file: User:Joostik
</p>
Translation into English: myself.
Translated into English from <a class="external free" href="https://commons.wikimedia.org/wiki/File:1815-VerenigdKoninkrijkNederlanden.svg">https://commons.wikimedia.org/wiki/File:1815-VerenigdKoninkrijkNederlanden.svg</a>