+A Grand Duchy is a [monarchy](/wiki/monarchy) whose head of state is a [Grand Duke](/wiki/grand_duke) or Grand Duchess. This historical form of realm typically held a status between a duchy and a kingdom, often implying greater sovereignty or territory.
+## See also
+- [Grand Duke](/wiki/grand_duke)
+- [Duchy](/wiki/duchy)
+- [Kingdom](/wiki/kingdom)
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