Clans developed a territory based on the native men who came to accept the authority of the dominant group in the vicinity. A clan also included a large group of loosely related septs – dependent families – all of whom looked to the clan chief as their head and their protector. According to the former Lord Lyon, Sir Thomas Innes of Learney, a clan is a community that is distinguished by heraldry and recognised by the Sovereign. Learney considered clans to be a "noble incorporation" because the arms borne by a clan chief are granted or otherwise recognised by the Lord Lyon as an officer of the Crown, thus conferring royal recognition to the entire clan. Clans with recognised chiefs are therefore considered a noble community under Scots law. A group without a chief recognised by the Sovereign, through the Lord Lyon, has no official standing under Scottish law. Claimants to the title of chief are expected to be recognised by the Lord Lyon as the rightful heir to the undifferenced arms of the ancestor of the clan of which the claimant seeks to be recognized as chief. A chief of a clan is the only person who is entitled to bear the undifferenced arms of the ancestral founder of the clan. The clan is considered to be the chief's heritable estate and the chief's Seal of Arms is the seal of the clan as a "noble corporation". Under Scots law, the chief is recognised as the head of the clan and serves as the lawful representative of the clan community. Historically, a clan was made up of everyone who lived on the chief's territory, or on territory of those who owed allegiance to the said chief. Through time, with the constant changes of "clan boundaries", migration or regime changes, clans would be made up of large numbers of members who were unrelated and who bore different surnames. Often, those living on a chief's lands would, over time, adopt the clan surname. A chief could add to his clan by adopting other families, and also had the legal right to outlaw anyone from his clan, including members of his own family. Today, anyone who has the chief's surname is automatically considered to be a member of the chief's clan. Also, anyone who offers allegiance to a chief becomes a member of the chief's clan, unless the chief decides not to