What's the name of the leitmotif for the English diplomacy theme?

[KommissarReb]

I know the Spanish themes are variations of Sonata K.322 by Domenico Scarlatti, the French theme is Gathering Peascods (English folk song), and the Dutch theme is "Over the Hills and far Away" (English army song). The only one I haven't been able to uncover is the theme for George Washington, John Adams, or the King of England. Does anyone know what the English diplomacy theme's leitmotif is?