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Birth:          1242 Toledo, Spain
Death:          27 Oct 1303 Tcorres Vedras, Lisboa, Portugal
Burial:         Mosterio Santa Maria, Alcobaca, Leiria, Portugal

Notes
https://en.wikipedia.org/wiki/Beatrice_of_Castile_(1242%E2%80%931303)
Beatrice of Castile (1242/1244 – 27 October 1303), an illegitimate daughter of Alfonso 
X of Castile and his mistress Mayor Guillén de Guzmán,[1][2] was the second Queen 
consort of Afonso III of Portugal.[2][3]
Biographical sketch[edit]

She was probably born shortly before 31 December 1244 when her father, King 
Alfonso, "with the consent of his father" donated Elche to his daughter Beatrice and 
all the children that he had with Mayor Guillén de Guzmán.[2][3] As part of his strategy 
to reach an agreement with the Kingdom of Portugal on the sovereignty of the 
Algarve, King Alfonso X offered his daughter Beatrice in marriage to King Afonso III of 
Portugal. The wedding was celebrated in 1253.[4] Under the agreement, the king of 
Castile promised that we would cede all the rights he held in the Algarve to the first 
male offspring of Alfonso III and Beatrice when the child was seven years' old.[4] The 
Portuguese nobility considered this marriage "humiliating for the King of Portugal",.[5] 
Much more serious though, was the fact that when the nuptials took place, the 
Portuguese monarch was still married to Matilda II, Countess of Boulogne who, in 
1255, accused her husband before Pope Alexander IV of bigamy.[6] In 1258, the 
Roman Pontiff condemned him for adultery, demanded that he return Matilda's dowry
[5] and placed him under interdict.[6] Matilda, however, died that year and the Pope's 
threats were left in suspense.[5]

Until her husband's death, Beatrice had great influence in the Portuguese court and 
supported the rapprochement of the kingdoms of Portugal and Castile.

When her mother died no later than 1267, she inherited her estates in La Alcarria 
which included Cifuentes, Viana de Mondejar, Palazuelos, Salmerón, Valdeolivas and 
Alcocer. In the last-mentioned city, she took under her protection the Monastery of 
Santa Clara that her mother, Mayor Guillén de Guzmán, had founded.[7]

She returned to Seville in 1282 due to discrepancies with her son, King Denis. Before 
November 1282, already a widow, she showed her monetary and personal support for 
her father in the dispute with her half-brother, Infante Sancho, later King Sancho IV. A 
charter kept at the Torre do Tombo National Archive in Lisbon documents the 
donation made by King Alfonso X of Castile to his daughter Beatrice of the villas of 
Mourão, Serpa, Moura with their castles and, on the same day, he also gave her the 
Kingdom of Niebla and the royal tithes of the city of Badajoz.[3] She remained at her 
father's side and was at his deathbed in 1284.[3]

Beatrice died on 27 October 1303 and was buried at the Monastery of Alcobaça

Marriage and issue[edit]

The bride was about 11 years old and the groom was 42 years old. They had the 
following children:


Name

Birth

Death

Notes

Branca 25 February 1259 17 April 1321 Lady of Las Huelgas[2][5]-1321) 
Ferdinand 1260 1262   
Dinis 9 October 1261 7 January 1325 Succeeded him as 6th King of Portugal; married 
Infanta Elizabeth of Aragon[8] 
Afonso 8 February 1263 2 November 1312 Lord of Portalegre; married to Infanta 
Violante Manuel of Castile (daughter of Manuel of Castile) 
Sancha 2 February 1264 c. 1302   
Maria 21 November 1264 6 June 1304 Nun at the Santa Cruz Monastery in Coimbra 
Constance 1266 1271   
Vincent 1268 1271   

Parents
____ Alfonso X "El Sabio" (23 Nov 1221 - 4 Apr 1284)
GUZMAN-VILLENA Maria Mayor Guillen (1205 - 1262)

Siblings
____ Beatrix (1242 - 27 Oct 1303)

Marriage To ____ Alfonso III "the Restorer" (5 May 1210 - 16 Feb 1279)
    m. 1253 

Notes

Parents
____ Affonso II "the Fat" (23 Apr 1185 - 25 Mar 1223)
DE CASTILE Urraca (ABT 1185 - 3 Nov 1220)

Children by ____ Alfonso III "the Restorer" 5 May 1210 - 16 Feb 1279
____ Diniz (Denis) "the Just" (9 Oct 1261 - 7 Jan 1325)

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