Maintenance of Surname. Secondly the office and title are implicitly linked to the surname, thus a McKay, a Cairns, etc. cannot be chief of Clan Buchanan. In some cases, where the heir is a daughter, arrangements have been made so that her husband and children assume her surname, and thus the office and title can be passed to her offspring. This practice has given rise to the use of compound (hyphenated or ‘double-barrelled’) names. The matter of principal names was established by the Lord Lyon Innes of Learney when in the case of Monro-Lucas-Tooth that he was a Tooth rather than a Monro or Lucas. It is now clearly established that it is the last name that decides the matter. Thus by the Court of the Lord Lyon, a Moodie-Buchanan is considered a Buchanan but a Buchanan-Moodie is considered a Moodie. Further, in the case of a chief as the representer of the family, the surname cannot be a compound surname.