Manu Aierdi
Manuel Aierdi Olaizola( born 13 January 1967) is a Basque economist, politician, Minister of Economic Development and Business of Navarre and a member of the Parliament of Navarre.
He was previously First Vice President of Navarre.
Beatrice of Navarre, Countess of La Marche
Beatrice of Navarre( 1392-1412/1415) was a daughter of Charles III of Navarre and his wife, Eleanor of Castile.
Joan of Navarre (regent)
Joan of Navarre( 1382 – July 1413) was the heir presumptive to the throne of Navarre in 1402 – 1413, and regent of Navarre in the absence of her father in 1409 – 1411.
She was the eldest child of King Charles III of Navarre by his wife Eleanor, daughter of King Henry II of Castile.
Isabella of Navarre, Viscountess of Rohan
Isabel d' Albret of Navarre( 1512–1555) was the daughter of John III of Navarre( died 1516) and Catherine I of Navarre, sister and heiress of Francis Phoebus, King of Navarre.
As heir apparent, her brother rose to the throne in 1517 as Henry II of Navarre, grandfather of King Henry III of Navarre( Henry IV of France).
Peter Burroughs
Peter Burroughs( born 27 January 1947) is a British television and film actor, the director of Willow Management.
He is the father- in- law of actor and TV presenter Warwick Davis.
Hugh IV, Duke of Burgundy
Hugh IV of Burgundy (9 March 1213 – 27 or 30 October 1272) was Duke of Burgundy between 1218 and 1272.
Hugh was the son of Odo III, Duke of Burgundy and Alice de Vergy.
Blanche of Navarre, Countess of Champagne
Blanche of Navarre( ?–1229) was countess and then regent of Champagne and finally also regent of her native kingdom of Navarre.
She was the youngest daughter of Sancho VI of Navarre and Sancha of Castile, who died in 1179, about two years after Blanche's birth.
Her eldest brother, Sancho VII of Navarre, succeeded their father as King of Navarre and was the last male descendant of the first dynasty of Kings of Navarre, the Pamplona dynasty, dying childless.
Her elder sister Berengaria of Navarre married Richard I of England.
Beatrice of Navarre, Duchess of Burgundy
Beatrice of Navarre (1242? – 1295), was Duchess of Burgundy, by marriage to Hugh IV, Duke of Burgundy.
She was a daughter of Theobald I of Navarre and his third wife Margaret of Bourbon.
Her siblings included Theobald II of Navarre and Henry I of Navarre.
She is also known as Beatrix of Champagne.
René I, Viscount of Rohan
René I de Rohan,( 1516–1552) 18th Viscount of Rohan, Viscount and Prince de Léon, and Marquis de Blain married Isabella of Navarre daughter of jure uxoris King John III of Navarre and Catherine of Navarre, Queen of Navarre.
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.

Question: Who is Beatrice Of Navarre, Duchess Of Burgundy's father-in-law?