Question: How long was the reign of the king whose court Paon de Roet became attached to?

Context paragraphs:
Virata: Virata (Sanskrit: विराट , lit.  "huge") in the Hindu epic "Mahabharata", was the king of Virata Kingdom, in whose court the Pandavas spent a year in concealment during their exile.  Virata was married to Queen Sudeshna and was the father of Prince Uttara and Princess Uttarā, who married Abhimanyu, the son of Arjuna.  Abhimanyu and Uttara's son Parikshit succeeded Yudhishthira to the throne of Hastinapura, after the war of Mahabharata.

Philippa Roet: Philippa de Roet ( 1346 – c. 1387) – also known as Philippa Pan or Philippa Chaucer – was the sister of Katherine Swynford and the wife of Geoffrey Chaucer.

Arthur Plantagenet, 1st Viscount Lisle: Arthur Plantagenet, 1st Viscount Lisle, KG (died 3 March 1542) was an illegitimate son of King Edward IV, half-brother of Queen Elizabeth of York, and thus an uncle of King Henry VIII, at whose court he was a prominent figure and by whom he was appointed Lord Deputy of Calais (1533–40).  The survival of a large collection of his correspondence in the Lisle Letters makes his life one of the best-documented of his era.

Sudeshna: In the Hindu epic "Mahabharata", Sudeshna was the wife of King Virata, at whose court the Pandavas spent a year in concealment during their exile.  She was the mother of Uttar, Uttara, Shveta, Satanika and Shankha, as well as others.

Aryamani: He is attested by one stela found at Kawa.  The stela provides a text in poor Egyptian language and is, therefore, for the most part, not fully understandable.  However, it provides a Year 9 date from his reign.  At Kawa, a second stela was also found dated to Year 24 of a king whose name is destroyed.  On stylistical grounds, it has been assumed that this stela also belongs to Aryamani who, therefore, must have reigned in Nubia for at least 23 years.

Margarita Salicola: Margarita Salicola ("floruit" 1682 – 1706) was a famous opera singer of her time.  She came from a family of musicians at the court of the Ferdinando Carlo Gonzaga, Duke of Mantua and became a staple of casts at San Giovanni Grisostomo, Venice's newest and most famous theater, in the 1680s.  The earliest work with which she can be linked is Pietro Simone Agostini's "Il ratto delle sabine" ("The Rape of the Sabine Women").  She was especially praised for her appearance in the title role of Carlo Pallavicino's "Penelope la casta" ("The Chaste Penelope") in the winter of 1685.  The Saxon elector Johann Georg III, in whose court Pallavicino already served, was so thrilled by her performance that he became intent to taking her and two "castrati" from the same cast into this service.  After a staged "kidnapping," Salicola was escorted en route to Dresden by a Mantuan agent.

Edward III of England: Edward III (13 November 1312 – 21 June 1377) was King of England from 25 January 1327 until his death; he is noted for his military success and for restoring royal authority after the disastrous and unorthodox reign of his father, Edward II.  Edward III transformed the Kingdom of England into one of the most formidable military powers in Europe.  His long reign of 50 years was the second longest in medieval England and saw vital developments in legislation and government—in particular the evolution of the English parliament—as well as the ravages of the Black Death.

Beonna of East Anglia: Beonna (also known as Beorna) was King of East Anglia from 749.  He is notable for being the first East Anglian king whose coinage included both the ruler's name and his title.  The end-date of Beonna's reign is not known, but may have been around 760.  It is thought that he shared the kingdom with another ruler called Alberht and possibly with a third man, named Hun.  Not all experts agree with these regnal dates, or the nature of his kingship: it has been suggested that he may have ruled alone (and free of Mercian domination) from around 758.

Alara of Nubia: Alara was a King of Kush who is generally regarded as the founder of the Napatan royal dynasty by his 25th Dynasty Nubian successors and was the first recorded prince of Nubia.  He unified all of Upper Nubia from Meroë to the Third Cataract and is possibly attested at the Temple of Amun at Kawa.  Alara also established Napata as the religious capital of Nubia.  Alara himself was not a 25th dynasty Nubian king since he never controlled any region of Egypt during his reign compared to his two immediate successors: Kashta and Piye respectively.  Nubian literature credits him with a substantial reign since future Nubian kings requested that they might enjoy a reign as long as Alara's.  His memory was also central to the myth of the origins of the Kushite kingdom which was embellished with new elements over time.  Alara was a deeply revered figure in Nubian culture and the first Nubian king whose name has come down to scholars.

Paon de Roet: Sir Paon de Roet (c.1310-1380), also called Payne Roet and sometimes Gilles Roet, was a herald and knight from Hainaut who was involved in the early stages of the Hundred Years War.  He became attached to the court of King Edward III of England through the king's marriage to Philippa of Hainaut.

Supporting paragraphs: Paon de Roet Edward III of England
Answer: 50 years