Manchyr and surrounding regions
The Duchy of Manchyr was the ranking duchy of Corisande (and the entire League for that matter), containing the capital city of Manchyr.
The title was usually held by the Princes of Corisande. (BHD)
Geography 
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The Duchy was located on the southeastern part of Corisande. It was bordered by the Manchyr Bay in the west and the Dark Hill Mountains on the east. (BHD)
