Concise AACR2: 31. General Rule

31A.

Choose, as the basis for the heading, the name by which a person is commonly known. It may be the person’s real name, pseudonym, nickname, title, name in religion, initials, or any other type of name. For persons using pseudonyms, see also rule 32A.

31B.

Apply the following subrules to decide the form of name by which a person is commonlly known.

31B1. Names containing surnames.

If a person is identified by a name that contains a surname:

use the form of name that appears in the chief sources of information (see rule 0A) of mainfestations of works by that person in his or her language
if the chief source of information are of little or no help (as, for example, with ainters, sculptors, and choreographers), or if the person is not primarily known as a creator of works (as, for example, with politicians and motion picture actors), use the form found in reference sources, other books, and articles issued in the person's language or country of residence or activity.

31B2. Names not containing surnames.

If a person is identified by a name that does not contain a surname:

use the name by which he or she is identified in English-language reference sources
if you cannot find the name in English-language reference sources available to you, use the form of name that appears in the chief sources of information (see rule 0A) of maifestations of works by that person in his or her language.

31C.

Include any titles of royalty or nobility (see also rule 40) that usually appear as part of the name.

31D.

If the name contains a surname, omit terms (other than those of royalty or nobility, see rule 31C) that appear with the name.

If the name does not contain a surname or if it consists of only a surname and a word or phrase, include any terms that normally appear as part of the name.