Noble jurisdiction is a term used to refer to the authority of an earldom, which is a title of nobility given to a person in certain countries. An earldom is typically granted by a monarch and is usually hereditary, meaning it is passed down from one generation to the next. Earldoms are associated with a particular area or region, and the holder of the title has certain rights and responsibilities within that area. The noble jurisdiction of an earldom is the power and authority that comes with the title, and it can include the right to collect taxes, administer justice, and make laws.