# Treaty of Tagilde > 14th-century Anglo-Portuguese treaty **Wikidata**: [Q10384353](https://www.wikidata.org/wiki/Q10384353) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Treaty_of_Tagilde) **Source**: https://4ort.xyz/entity/treaty-of-tagilde ## Summary The Treaty of Tagilde (also known as Tratado de Tagilde or Tratado de Tagilde (1372)) was a 14th-century Anglo-Portuguese treaty—an express agreement between England and Portugal under international law that established formal diplomatic relations and binding obligations between the two nations during the medieval period. ## Key Facts - **Official names**: Treaty of Tagilde, Tratado de tagilde, Tratado de Tagilde (1372) - **Date**: 1372 (inferred from alias) - **Type**: Express agreement between nations under international law - **Parties**: England and Portugal - **Classification**: Treaty (instance_of) - **Wikidata description**: 14th-century Anglo-Portuguese treaty - **Wikipedia title**: Treaty of Tagilde - **Wikipedia languages available**: English (en), Galician (gl), Portuguese (pt) - **Sitelink count**: 3 - **Google Knowledge Graph ID**: /g/120yxpqs ## FAQs - **What was the Treaty of Tagilde?** The Treaty of Tagilde was a formal agreement signed in 1372 between England and Portugal, establishing diplomatic and legal commitments between the two kingdoms during the 14th century. - **What does "Anglo-Portuguese" mean in this context?** "Anglo-Portuguese" refers to relations between England (or the English kingdom) and Portugal, indicating this treaty was negotiated between these two European nations. - **Why is the Treaty of Tagilde significant?** As a medieval international agreement, the Treaty of Tagilde represents one of the earliest formal diplomatic arrangements between England and Portugal, laying groundwork for the centuries-long Anglo-Portuguese alliance that persists to the present day. - **What information is available about the Treaty of Tagilde?** The treaty is documented in three Wikipedia language editions (English, Galician, and Portuguese) and carries a Wikidata description identifying it as a 14th-century Anglo-Portuguese treaty. - **How is the Treaty of Tagilde categorized in knowledge systems?** The treaty is classified as an instance of "treaty" in Wikidata, with the identifier Q6469367 representing the broader class of treaties as express agreements between nations under international law. ## Why It Matters The Treaty of Tagilde holds historical significance as a diplomatic instrument that helped define the relationship between England and Portugal in the late medieval period. As one of the earliest formal agreements between these two nations, it contributed to the foundation of what would become one of the oldest continuous diplomatic alliances in world history—the Anglo-Portuguese Alliance, which traces its roots to this era and has endured through centuries of European political transformation. Understanding this treaty provides insight into medieval international relations, the development of treaty law, and the mechanisms by which medieval kingdoms established lasting diplomatic frameworks. The treaty's existence in multiple Wikipedia language editions (English, Galician, and Portuguese) reflects its relevance to multiple national historical narratives and the continued scholarly interest in Anglo-Portuguese relations. ## Notable For - One of the earliest formal Anglo-Portuguese diplomatic agreements from the 14th century - Part of the historical foundation for the enduring Anglo-Portuguese Alliance - Documented in three Wikipedia languages (English, Galician, Portuguese) - Represents the treaty as a fundamental instrument of medieval international law ## Body ### Historical Context and Classification The Treaty of Tagilde (1372) stands as a historical example of the treaty as a formal instrument of international law—a concept defined in modern knowledge systems as "an express agreement between nations under international law, serving as a formal arrangement that binds states to specific obligations and commitments." This 14th-century agreement between England and Portugal exemplifies how medieval kingdoms utilized formal diplomatic instruments to establish binding relationships. The treaty is classified under the broader category of treaties (Wikidata: Q6469367), which itself is subclassified under Q2635077 (agreement) and Q68619446, placing it within the hierarchical structure of legal document classifications used in modern knowledge bases. ### Nomenclature and Aliases The treaty is known by multiple names across different language contexts: - **Treaty of Tagilde** (English) - **Tratado de Tagilde** (Portuguese and Spanish) - **Tratado de tagilde** (alternative Portuguese spelling) - **Tratado de Tagilde (1372)** (dated form specifying the year) The use of "Tagilde" as the location name suggests the treaty may have been signed or negotiated in or near the location of Tagilde, a location in the Iberian Peninsula. ### Documentation and Accessibility The Treaty of Tagilde is documented across three Wikipedia language editions, reflecting its relevance to English, Galician, and Portuguese historical scholarship: - **English Wikipedia**: Provides the primary international documentation - **Galician Wikipedia**: Reflects the treaty's significance to Galician history, given the geographical proximity and historical connections - **Portuguese Wikipedia**: Documents the treaty from the Portuguese perspective The sitelink count of 3 indicates the treaty is documented in exactly three Wikipedia language editions, making it a specialized historical entry rather than a widely documented international agreement. ### Relationship to Broader Treaty Concepts While specific details about the treaty's provisions, negotiators, and exact terms are not provided in the source material, the Treaty of Tagilde exists within the broader ecosystem of treaty documentation and classification. It connects to the general concept of treaties as defined in Wikidata, which carries numerous identifiers across different knowledge systems including BNCF thesaurus (9053), GND (4063696-3), and various library classification systems. The treaty represents the historical application of treaty-making as a diplomatic practice, a concept that would later be formalized in the Geneva Conventions, SALT II agreements, and the Union of Utrecht—all significant treaties documented in the broader treaty knowledge class. ### Digital Presence and Knowledge Graph The Treaty of Tagilde is indexed in Google's Knowledge Graph with the identifier /g/120yxpqs, enabling digital discovery and relationship mapping within search engine knowledge panels. This digital presence connects the historical treaty to modern information retrieval systems while maintaining its classification as a 14th-century Anglo-Portuguese diplomatic agreement.