Isabella of England
Isabella of England( 1214 – 1 December 1241) was Holy Roman Empress, Queen of the Germans, and queen consort of Sicily.
She was the fourth child and second daughter of John, King of England and Isabella of Angoulême.
Isabella of Lusignan
Isabella of Lusignan( c.1224 – 14 January 1300) was a daughter of Hugh X of Lusignan and his wife Isabella of Angoulême, Dowager Queen of England.
Isabella was half- sister to King Henry III of England.
She was Dame de Beauvoir- sur Mer et de Mercillac.
Isabella of Clermont
Isabella of Clermont( – 30 March 1465), also known as Isabella of Taranto, was a Sovereign Princess of Taranto and first Queen consort of Ferdinand I of Naples.
Isabella of Scotland, Countess of Norfolk
" Not to be confused with Isabella of Scotland, Duchess of Brittany" Isabella of Scotland( 1195 – after 1253) also known as" Isobel" or" Isabel" was a daughter of William the Lion, King of Scotland and his wife Ermengarde de Beaumont.
She was a member of the House of Dunkeld and by marriage she was Countess of Norfolk.
Isabella of Villehardouin
Isabella of Villehardouin (1260/1263 – 23 January 1312) was sovereign princess of Achaea from 1289 to 1307.
She was the elder daughter of William II of Villehardouin, Prince of Achaea, and of his third wife Anna, the second daughter of Michael II Komnenos Doukas, the despot of Epiros.
Renaud of Briel
Renaud of Briel, in older literature Renaud of Bruyères, was a French knight and the first lord of the Barony of Karytaina in the Principality of Achaea, in Frankish Greece.
Hailing from Briel- sur- Barse in the French province of Champagne, Renaud had accompanied Geoffrey of Villehardouin on the Fourth Crusade, traveling directly to Syria rather than to Constantinople with the main crusader expedition.
Renaud then went to Greece, where after five years of service as a knight, he was appointed lord of Karytaina( 1209- 1222) by Geoffrey of Villehardouin.
Renaud ’s younger brother Hugh joined him in Greece in 1215, married Geoffrey of Villehardouin ’s only daughter Alix, and later succeeded Renaud as baron of Karytaina( ca. 1222-38).
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.
Matilda of Hainaut
Matilda of Hainaut( 29 November 1293 – 1331) was the Princess of Achaea from 1313 to 1318.
She was the daughter of Isabella of Villehardouin and her husband Florent of Hainaut.
In 1299, while still a child, she had been married to Guy II de la Roche, Duke of Athens.
Widowed in 1308, she was engaged to Charles of Taranto until 1313, when she remarried to Louis of Burgundy, who held the titular dignity of the long- extinct Kingdom of Thessalonica.
The marriage was intended to unite the Angevin and Burgundian houses.
So was the betrothal of the Empress Catherine II to Hugh V of Burgundy, Louis's elder brother.
However, Charles of Valois, Catherine's father, nixed the marriage and instead married her to Philip of Taranto.
It was in an effort to compensate the Burgundians that Philip renounced his claim to Achaea in favour of Matilda and gave her hand to Louis.
From 1307, when Philip of Savoy relinquished his claim, to 1312, when Isabella of Villehardouin died, Achaea was disputed between two claimants: Isabella and Philip I of Taranto.
In 1313, Philip granted it to Matilda, daughter of Isabella and her first husband Florent of Hainaut.
On Isabella's death, however, Ferdinand of Majorca laid claim to the principality in right of his wife, Isabella of Sabran, the daughter of Isabella's younger sister Margaret of Villehardouin.
The new couple quickly left for Greece to take possession of their fief, which was then occupied by their rival Ferdinand.
At the Battle of Manolada on 5 July 1316, Ferdinand was vanquished and killed and Louis took control of the Elis.
However, he was poisoned soon after, leaving a twice- widowed 23- year- old in charge of the Morea.
It was soon disputed by the varying claimants and Matilda was solidly dispossessed of her fief by 1318, in which year John, Duke of Durazzo, an Angevin, abducted the princess and forced her to marry him.
She did not give him children, however, and he repudiated her in 1321.
Matilda married yet again to Hugh de La Palice and retired to Aversa, where she died in 1331.
William of Villehardouin
William of Villehardouin ("Guillaume de Villehardouin"; died 1 May 1278) was the last Villehardouin prince of Achaea (as William II) and ruled the principality at the height of its power and influence(1246 - 1278).
William was the son of Geoffrey I Villehardouin.
In 1236 he aided the Latin Empire against the Byzantine Empire of Nicaea, and was rewarded with the overlordship of the Venetian Duchy of the Archipelago and other Venetian territories in the Aegean Sea.
In 1239 he married the daughter of Narjot de Toucy and of Narjot's first wife (who was the daughter of the dowager empress Anna).
William came to power in Achaea in 1246 when his brother Geoffrey II Villehardouin died.
As prince he conquered the remaining territory of the Peloponnese (known at the time as Morea) and built the fortress of Mistra near Sparta.
In 1249 he captured Monemvasia with help from his Euboeote vassals, and later that year accompanied Louis IX of France on the Seventh Crusade, joining him in Cyprus with 400 knights and 28 ships.
Louis also gave him a license to mint coins in the style of royal French money.
Under William's rule the Duchy of the Archipelago, the Duchy of Athens, and the Lombard lords ("triarchs") of Euboea recognized him as their lord.
In 1255 his Venetian second wife Carintana dalle Carceri died, leading to a dispute over the inheritance of a fief in Euboea, and war broke out between Venice and Achaea (the War of the Euboeote Succession).
William won the war and also defeated the Duke of Athens in 1258, reaffirming his influence over the duchy.
In 1259 he married Anna Komnene Doukaina, daughter of Michael II of Epirus, forming an alliance with the Byzantine Despotate of Epirus against Nicaea, an alliance which also included Manfred of Sicily.
In September of that year he led the Achaean forces at the Battle of Pelagonia against the Nicaeans, but the Epirote army deserted and William was defeated.
He fled the field and hid under a haystack, where he was captured and brought to Nicaea.
He remained in captivity until 1262, and was forced to hand over Grand Maigne, Monemvasia and Mistra to the Byzantine Empire, which had been restored in Constantinople the previous year.
William had now lost all of his previous power, as had his former lord, Baldwin II of Constantinople, whose Latin Empire was lost with the Byzantine restoration.
William and Baldwin both acknowledged Charles of Anjou as lord of Achaea under the Treaty of Viterbo in 1267; Charles had earlier defeated and killed William's old ally Manfred.
As a vassal of Charles, William and 400 Achaean knights fought against Conradin at the Battle of Tagliacozzo in 1268.
William and Anna had two daughters, Isabella and Margaret;
Isabella, the elder daughter, married Charles's son Philip of Sicily, who, however, predeceased his father.
Charles personally succeeded William in 1278, ending the Villehardouin dynasty and setting up Angevin rule, with the principality governed essentially as a province of the Kingdom of Naples.
With the decreasing power and influence of Achaea, the Duchy of Athens became the most powerful state in Greece.
William was also noted as a trouvère, and the "Manuscrit du Roi", containing two of his own compositions, was written in Achaea during his reign.
He was fluent in both French and Greek.
Isabella of Valois, Duchess of Bourbon
Isabella of Valois, Duchess of Bourbon or" Isabella of France"( 1313 – 26 July 1383), was a Petit Fille of France, and a daughter of Charles of Valois by his third wife Mahaut of Châtillon.
She was the wife of Peter I, Duke of Bourbon.

Question: Which country Isabella Of Villehardouin's father is from?