Canonum De Ius Rex
Canons of Sovereign Law
II. Sovereign
2.1 Sovereign Claim
Article 18 - Sovereign Claim
Canon 5509 (link)
While a form of leadership may seek to present its position as a Right, such rights must be first secured by acceptance of one (1) or more Claims. Thus all forms of leadership are founded on one (1) or more Claims.
Canon 5510 (link)
The strength of a Sovereign Claim depends upon its nature, its provenance and custom of acceptance within a culture.