Karl Graf von Moy de Sons (1863–1932) was a German noble and diplomat of the Kingdom of Bavaria, representing King Ludwig III of Bavaria in the Russian Empire from 1906 to 1909 before becoming the Bavarian representative in Stuttgart, where he was the resident minister to both the Kingdom of Württemberg and the Grand Duchy of Baden from 1909 to 1918. His father was also diplomat and had been the Bavarian ambassador to the Kingdom of Italy.
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