ROMSO Cyprus Knowledge Base

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Origin
According to the diplomatic Opera et historica, tomus primus, Bianca was the sister of the Marquis of Namur, Philip III, who was the son of the Marquis of Namur, John I and his second wife, Maria d'Artois, who, according to the Continuatio Chronici Guillelmi de Nangiaco, was the daughter of Bianca of Brittany, wife of Philip d'Artois. John I of Namur according to the Norman Chronique du XIVe siècle, was the firstborn son of the Count of Flanders and Marquis of Namur, Guido I and his second wife, the Marquis of Namur, Isabella, who, according to Histoire généalogique de la maison royale de Dreux (Paris), was the daughter of the Count of Luxembourg, of La Roche and of Arlon Margaret

Biography
His father, John, was at his second marriage; from 1308, according to the Chronicius Guillelmi de Nangiaco, in that year he remained widow of the first wife, Margherita of Clermont, who, he had not given him children.

His father, John I, according to the Histoire du comté de Namur, died in Paris in 1330; according to the Nécrologe de l'abbaye de Floreffe, John (Johannis de Flandria comitis Namurcensis) died on 10 February (IV Id Feb). His brother, John, the firstborn son, succeeded him as John II.

In that period was combined the marriage of Bianca with the king of Sweden, Norway and Skåne, Magnus Eriksson and, according to a document of the Foedera, conventions, literæ et cujuscunque generis acta publica..., Volume 2 the king of England, Edward III, in August gave provisions for carrying a ship Bianca (Blanchia de Namour soror, nobilis viri

His brother, John II, in that year had died, in April, and being John II without an offspring, succeeded him as Guido II, his brother, Guido, who was Marquis of Namur for less than a year, succeeded, in March 1336, by Philip (Filippo III). Also the diplomatic Opera et historica, tomus primus of Auberti Miraei, reports that Philip III wanted to reach the brother-in-law, Magnus IV Eriksson, but who then preferred to go to the Holy Land, where he did not come as he died in Famagosta on the island of Cyprus. Philip III succeeded his brother, Gugliel