Charles

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biographical name (1)

ˈchär(-ə)lz 

1771–1847 archduke of Austria

Charles

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biographical name (2)

Prince 1903–1983 brother of King Leopold III regent of Belgium (1944–50)

Charles

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geographical name

ˈchär(-ə)lz 

river 47 miles (76 kilometers) long in Massachusetts flowing into Boston harbor

Note: The estuary of the Charles River separates Boston and Cambridge.