Urraca Afonso
Urraca Afonso( c.1260-1290?) was a Portuguese noble lady, illegitimate daughter of Afonso III of Portugal and Madragana Ben Aloandro.
And half sister of Denis of Portugal.
Urraca was twice married, first to, and then with João Mendes de Briteiros.
Gonçalo Anes de Briteiros
Gonçalo Anes de Briteiros or Berredo (1280-1329) was a Portuguese nobleman, member of the court of Denis of Portugal (his uncle).
João Mendes de Briteiros
João Mendes de Briteiros( 1250 -?) was a Portuguese nobleman, who served in the Court of Denis of Portugal.
Martim Afonso Chichorro
Martim Afonso Chichorro( 1250–1313) was a Portuguese nobleman, who served in the Court of Denis of Portugal( his half brother).
Denis of Portugal
Denis (9 October 1261 – 7 January 1325 in Santarém), called the Farmer King ("Rei Lavrador") and the Poet King ("Rei Poeta"), was King of Portugal.
The eldest son of Afonso III of Portugal by his second wife, Beatrice of Castile, and grandson of king Alfonso X of Castile (known as the Wise), Denis succeeded his father in 1279.
His marriage to Elizabeth of Aragon, who was later canonised as a saint of the Roman Catholic Church, was arranged in 1281 when she was 10 years old.
Denis ruled Portugal for over 46 years.
He worked to reorganise his country's economy and gave an impetus to Portuguese agriculture.
He ordered the planting of a large pine forest (that still exists today) near Leiria to prevent the soil degradation that threatened the region and as a source of raw materials for the construction of the royal ships.
He was also known for his poetry, which constitutes an important contribution to the development of Portuguese as a literary language.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Afonso IV of Portugal
Afonso IV( 8 February 129128 May 1357), called the Brave, was King of Portugal from 1325 until his death.
He was the only legitimate son of King Denis of Portugal by his wife Elizabeth of Aragon.
Constance of Portugal
Constance of Portugal( pt:" Constança"; 3 January
1290 – Sahagún, 18 November 1313), was Queen of Castile by her marriage to Ferdinand IV.
She was the eldest child and only daughter of King Denis of Portugal and his wife Elizabeth of Aragon, later Saint.
Martim Afonso Chichorro II
Martim Afonso Chichorro II or Martin Alfonso de Sousa( 1280 -?) was a Portuguese nobleman, who served in the Court of Denis of Portugal( his carnal uncle).
Beatrice of Castile (1242–1303)
Beatrice of Castile (1242/1244 – 27 October 1303), an illegitimate daughter of Alfonso X of Castile and his mistress Mayor Guillén de Guzmán, was the second Queen consort of Afonso III of Portugal.

Question: What is the date of death of Denis Of Portugal's mother?
Answer: 27 October 1303