This is a very complex and controversial issue, involving historical, legal and political factors. In history, there are indeed many parties in territorial disputes who would claim "ancient territorial relations" as a basis. However, in modern international law practice, it is often not enough to judge territorial sovereignty based solely on ancient territorial relations. Here are a few key factors to consider: 1. Principles of international law: Current international law usually focuses on the actual control of a country, legal boundaries and formal treaties signed between countries. Principles such as "actual control", "treaty law" and "state succession" all play an important role in judging territorial ownership. Although historical claims can be used as a reference, they are not the only basis. 2. Modern international relations: Territorial disputes between countries often involve national self-determination, political reality and the consensus of the international community. Most of the time, international arbitration or court decisions will comprehensively consider history, actual control, people's will and various international treaties, rather than relying solely on ancient historical facts to make a conclusion. 3. Diversity of historical interpretations: Historical materials often have different interpretations, and the political and cultural backgrounds of different historical stages may also lead to different interpretations of the same event. Therefore, simply relying on ancient territorial relations may not reflect the reasonable demands of contemporary parties for sovereignty. 4. Actual interests and political considerations: When actually resolving territorial disputes, it usually involves multiple factors such as strategy, security, and economy of both parties. A single historical factor often cannot cover all the complex situations. On the whole, although ancient territorial relations can help understand the historical background and national identity to a certain extent, under the framework of modern international law and international relations, determining territorial ownership usually requires relying on information and evidence from multiple dimensions, and cannot simply use ancient territorial ownership as the final judgment standard. Each specific case has its own unique historical evolution and current background, so the process of resolving territorial disputes is usually the result of both multilateral consultations and legal procedures.