Treaty of Tagilde

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The Treaty of Tagilde was a treaty signed on 10 July 1372 in Tagilde, a village in Portugal. It was signed by King Ferdinand I of Portugal and representatives of John of Gaunt, Duke of Lancaster, a claimant to the Crown of Castile and son of the English king, Edward III. This agreement is considered to have constituted the first legal foundation of the Anglo-Portuguese Alliance, which continues to exist. The agreement was followed up by the Anglo-Portuguese Treaty of 1373, known as the Treaty of Peace, Friendship and Alliance, which was signed in St Paul’s Cathedral by King Edward III of England and King Ferdinand and Queen Leonor of Portugal and is also known as the Treaty of London. Subsequently, the Treaty of Windsor (1386) ratified the London treaty. [1] [2] [3] [4] It is the oldest continuous treaty in effect to this day.

Monument to the Treaty of Tagilde in Tagilde, Portugal Monumento Evocativo da Alianca Portugal Inglaterra - Tagilde - Portugal (34549107054).jpg
Monument to the Treaty of Tagilde in Tagilde, Portugal

The Treaty of Tagilde was signed at the Church of São Salvador of Tagilde and sealed the alliance of the two claimants to the Castilian throne. Prior to the treaty, there had been disputes over the Castilian throne between D. Pedro and his illegitimate brother, D. Enrique de Trastámara. D. Pedro was killed at the Battle of Montiel in 1369, and King Ferdinand then declared war on D. Enrique. John of Gaunt had married D. Pedro's daughter, Constance, in 1371 and therefore had a claim to the Castilian throne. King Ferdinand also had a claim to the throne, as the great-grandson of a previous king of Castile. For Ferdinand, the treaty provided an opportunity to assert the independence of Portugal against interference from Castile. The treaty agreed that the two signatories would wage war against Castile on two fronts: the English on the north and the Portuguese to the west. [1] [2] [3]

Shortly after signing the Treaty, King Ferdinand sent two ambassadors to the Duke of Lancaster in England for him to sign it, which was done at the Savoy Palace, John of Gaunt's residence in the centre of London. The Portuguese ambassadors were also authorised to make alliances with Edward III and with his first son, Edward, Prince of Wales. These negotiations resulted in the Treaty of London of 16 June 1373. In 1385, the Portuguese army, with help from English soldiers, defeated Castilian forces at the Battle of Aljubarrota. [1] [2] [3]

The 650th anniversary of the treaty is being celebrated in 2022. [1]

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Events from the 1360s in England.

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<span class="mw-page-title-main">Battle of Saltes Island</span> Naval battle

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<span class="mw-page-title-main">Third Fernandine War</span> 1381–1382 war between Castile and Portugal and England

The Third Fernandine War was the last conflict of the Fernandine Wars, and took place between 1381–1382, between the Crown of Castile and the Kingdoms of Portugal and England. When Henry II of Castile died in 1379, John of Gaunt, 1st Duke of Lancaster claimed their rights of the throne of the Kingdom of Castile, and found an ally Ferdinand I of Portugal.

<span class="mw-page-title-main">Tagilde e Vizela (São Paio)</span> Civil parish in Norte, Portugal

Tagilde e Vizela is a parish in the municipality of Vizela, in the district of Braga, Portugal, with an area of 5.25 km2 and 3 364 inhabitants (2011). The parish was created during an administrative reorganization of 2012–2013, and resulted from the joining of the former parishes of Tagilde and São Paio de Vizela. Both had been moved from the municipality of Guimarães in 1998, when the municipality of Vizela was created.

The Treaty of Bayonne in 1388 ended a conflict over the succession to the crown of Castile. The treaty was signed on 26 October 1388 in Bayonne between King John I of Castile and John of Gaunt, Duke of Lancaster, claimant to the throne of Castile in the right of his wife.

References

  1. 1 2 3 4 "The Beginnings of the Anglo-Portuguese Alliance". Portugal-UK 650. Retrieved 24 January 2022.
  2. 1 2 3 Benham, Jenny. "Making an Alliance Last in an Age of Conflicts: Obligations and Deterrence in the Medieval Anglo-Portuguese Treaties". Academia.edu. Retrieved 24 January 2022.
  3. 1 2 3 Lopes, Fernão (1895). "CHRONICA DE EL-REI D, PEDRO I". Archive.org. Retrieved 24 January 2022.
  4. Benham, Jenny. "The Treaty of Tagilde". British Historical Society of Portugal. Retrieved 31 May 2022.