demesne, domain, land - territory over which rule or control is exercised; "his domain extended into Europe"; "he made it the law of the land"

Cambria, Cymru, Wales - one of the four countries that make up the United Kingdom of Great Britain and Northern Ireland; during Roman times the region was known as Cambria

Monaco, Principality of Monaco - a constitutional monarchy in a tiny enclave on the French Riviera

Muscovy - a Russian principality in the 13th to 16th centuries; Moscow was the capital