Cornwall (a peninsula, cultural area, maritime ceremonial county, and duchy in England; forming its south-western extremity, bordered by Devon in the east)
any of several legislative assemblies of Spain and Portugal; parliamentary chambers which exercise the power to craft legislation and control the actions of government as elected representatives of the public or, historically, in an advisory role to a reigning monarch
Cotabato (a province of Soccsksargen, Mindanao, Philippines; capital and largest city: Kidapawan); Cotabato (a former province of Mindanao, Philippines; capital and largest city: Cotabato City)