James I, Count of Urgell
James I( 1321 – 15 November 1347), the eighteenth Count of Urgell, was the fourth son of Alfonso IV King of Aragon and Teresa d' Entença& Cabrera, 17th Countess of Urgell.
John, Prince of Antioch
John, Prince of Antioch( 1431 – 1457), was the second son of Infante Peter, Duke of Coimbra, and Isabella of Urgell, Duchess of Coimbra.
Beatrice of Coimbra
Infanta Beatrice of Coimbra( 1435 – 1462) was the 5th child of Infante Peter, Duke of Coimbra, and Isabella of Urgell.
After the battle of Alfarrobeira, where her father's army was defeated by the Portuguese royal army, she left the country and took refuge in Burgundy, under her aunt ’s protection: Isabella of Portugal was married to Duke Philip III the Good.
In 1453, Beatrice married Adolph of Cleves, Lord of Ravenstein, nephew of the Duke Philip III the Good.
They had issue:
She died in Bruges of suspected poisoning in 1462.
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.
Tahira Wasti
Tahira Wasti( 1944 – March 11, 2012) was a well- known Pakistani writer and television actress.
She is best known for portrayal of Isabella of Castile in the TV drama" Shaheen".
Isabella of France, Dauphine of Viennois
" For other persons named Isabella of France, see Isabella of France( disambiguation)" Isabella of France and Burgundy( 1310 – April 1348) was the daughter of Philip V of France and Joan II, Countess of Burgundy.
Isabella of Urgell, Duchess of Coimbra
Isabella of Urgell, Duchess of Coimbra (Spanish: "Isabel")
(12 March 1409 – 17 September 1459) was a Catalan noblewoman of the Urgell branch of the House of Aragon.
She was the wife of Infante Peter, Duke of Coimbra.
Ermengol IX, Count of Urgell
Ermengol IX( 1243) was a medieval Catalan nobleman.
After his father's death in 1243, the eight- year- old boy succeeded as Count of Urgell.
However, he, too died during the same year, situation in which he was the only Count of Urgell to die during his early years.
The son of Ponce I of Urgell and María Girón, he was buried in the.
Philippa of Coimbra
Infanta Philippa of Coimbra( 1437 – 1497) was the youngest child of Infante Peter, Duke of Coimbra, and Isabella of Aragon, Countess of Urgell.
She became a nun in the Convent of Odivelas where she died in 1497.
Peter, Duke of Coimbra
Infante D. Pedro, Duke of Coimbra , (9 December 1392 – 20 May 1449) was a Portuguese "infante" (prince) of the House of Aviz, son of King John I of Portugal and his wife Philippa of Lancaster, daughter of John of Gaunt.
In Portugal, he is better known as Infante D. Pedro das Sete Partidas [do Mundo], "of the Seven Parts [of the World]" because of his travels.
Possibly the best-travelled prince of his time
, he was regent between 1439 and 1448.
He was also 1st
Lord of Montemor-o-Velho, Aveiro, Tentúgal, Cernache, Pereira, Condeixa and Lousã.

Question: What is the date of death of Isabella Of Urgell, Duchess Of Coimbra's husband?
Answer: 20 May 1449