Gualterius de Lavendel
Encyclopedia
Gualterius de Lavendel was an ambassador of the king Charles II of Anjou to the Mongol ruler Ghazan. He went to Persia to visit Ghazan, and arrived there after April 27, 1303. The embassy followed the 1302 Peace of Caltabellotta
Peace of Caltabellotta
The Peace of Caltabellotta, signed on 31 August, 1302, was the last of a series of treaties, including those of Tarascon and Anagni, designed to end the conflict between the Houses of Anjou and Barcelona for ascendancy in the Mediterranean and especially Sicily and the Mezzogiorno.The peace divided...

 which ended the conflict between Anjou and Aragon in the Mediterranean.
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