This question is complex and involves many historical, political and legal factors. Territorial ownership is usually determined according to international law, especially the relevant legal system after the Treaty of Versailles in 1919. For example, the International Court of Justice and governments of various countries consider historical colonization, border changes, post-war arrangements and other factors to make decisions when dealing with territorial disputes. According to your statement, judging the sovereignty and ownership of a territory based solely on ancient territorial relations may have the following problems: 1. **Lack of clear boundary definition**: In ancient times, the boundaries of territories were often unclear and may even overlap. Therefore, judging based on ancient territorial relations may not accurately determine the sovereignty of today's territories. 2. **Historical changes and transfers**: As history develops, sovereignty over territories may transfer due to wars, colonization, treaties, partition and other reasons. Relying solely on ancient territorial relations may ignore important events and institutional changes that have occurred in history. 3. **The right of self-determination and modern international law**: Modern international law emphasizes the importance of the right of self-determination, which means that a nation has the right to determine its own political status. If the majority of residents of a region disagree with the ancient territorial affiliation, the claim may be ignored or not recognized. 4. **Complexity in practice**: Historical records of ancient territories may be disputed, lost, or interpreted differently. In this case, it is difficult to determine which party's claim is more reasonable. In summary, it is not sufficient to judge territorial sovereignty and ownership based solely on ancient territorial affiliations. Today's territorial disputes and international relations need to take into account historical, political, legal and other factors, and follow the principles and provisions of modern international law.