The arms of the Kingdom of Westphalia shows the heraldry of those countries, which had been incorporated into the country. It can be seen among others: Duchy of Brunswick-Lueneburg, and Landgraviate of Hesse-Cassel. On the crest coat lie Napoleonic medals, a Napoleon monogram, and the coat is covered with golden bees. The honey bee was the personal emblem of Napoleon Bonaparte, so to speak the animal emblem of the person N. Bonaparte, the eagle was the official armor of the emperor in (West-)Roman, Franconian tradition. The award of golden bees for inclusion into coats of arms was a special form of honoring by Napoléon for meritorious persons, countries or cities, e.g. the island of Elba.
The name "Westphalia", or "Westphalia", comes from the Old High German word "falaho", which means "lowland people". There is to distinct Eastphalia and Westphalia, east or west of the river Weser. Both landscapes were next to "Engern" the most important parts of the Tribal Duchy of Saxony, and had been later their own duchies. The by Napoléon created Kingdom of Westphalia (French: Royaume de Westphalie) has nothing to do with it. Obviously, only the name was borrowed. To avoid confusion with the real historic "Westphalia" (in German written: Westfalen), Napoléons creation is in germany now generally to write as "Westphalen".