Martim Afonso Chichorro
Martim Afonso Chichorro( 1250–1313) was a Portuguese nobleman, who served in the Court of Denis of Portugal( his half brother).
Afonso, Prince of Portugal (1526)
Afonso, Prince of Portugal was the first son of king John III of Portugal and his queen, Catherine of Austria.
He was the Prince of Portugal but died in the same year he was born, in 1526.
Afonso III of Portugal
Afonso III (rare English alternatives: "Alphonzo" or "Alphonse"), or "Affonso" (Archaic Portuguese), "Alfonso" or "Alphonso" (Portuguese-Galician) or "Alphonsus" (Latin), the Boulonnais (Port. "
o Bolonhês"), King of Portugal (5 May 121016 February 1279) was the first to use the title "King of Portugal and the Algarve", from 1249.
He was the second son of King Afonso II of Portugal and his wife, Urraca of Castile; he succeeded his brother, King Sancho II of Portugal, who died on 4 January 1248.
João Mendes de Briteiros
João Mendes de Briteiros( 1250 -?) was a Portuguese nobleman, who served in the Court of Denis of Portugal.
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.
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.
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).
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).
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.

Question: Who is Denis Of Portugal's paternal grandfather?
Answer: Afonso II of Portugal