John of Montfort, Lord of Tyre
John of Montfort (died 27 November 1283) was lord of Toron from 1257 to 1266 and Lord of Tyre from 1270 to 1283.
He was the son of Philip of Montfort (lord of La Ferté-Alais, of Bréthencourt, of Castres, of Toron and of Tyre), and his second wife Maria of Antioch-Armenia (the elder daughter of Raymond-Roupen of Antioch and hence Lady of Toron and pretender of Armenia).
When he came of age, he received the lordship of Toron from his father, but the Mamluks conquered it in 1266.
On 22 September 1268 he married Margaret, daughter of Henry of Antioch and of Isabella of Cyprus.
Margaret was the sister of king Hugh III of Cyprus, who later became king of Jerusalem and negotiated a certain number of alliances with the nobility of the kingdom in order to shore up his pretence against Charles I of Sicily.
On the occasion of this marriage, Hugh III confirmed Montfort's possession of Tyre but reserved the throne's right to retake the fiefdom if John and Margaret died without issue.
In 1270 his father was killed by the Assassins, and John succeeded to the lordship and governed Tyre until his death in 1283.
He had no children, so Hugh III allowed Humphrey of Montfort to succeed his brother.
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John I of Montfort
Jean I de Montfort( ?– 1249, Cyprus), Comte de Montfort from 1241 to 1249, son of Amaury de Montfort, comte de Montfort, and of Béatrice de Bourgogne.
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Their only child was:
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Maria of Antioch-Armenia
Maria of Antioch-Armenia (1215–1257) was lady of Toron from 1229 to her death.
She was the elder daughter of Raymond-Roupen, prince of Antioch, and of Helvis of Lusignan.
She derived her title of Lady of Toron and claim to the throne of Armenia from her father.
Maria's paternal grandmother Alice became lady of Toron when emperor Frederick II, at the end of the Sixth Crusade, negotiated the return of lands conquered by Saladin; Maria succeeded her as she was the closest surviving relative.
In 1240 she married Philip of Montfort, Lord of Tyre, previously lord of Castres, and they had the following children:
She was the great-granddaughter of Roupen III, prince of Armenia (Roupen III's daughter was Alice), who had been succeeded by his brother Leo I. Maria thus unsuccessfully claimed rights to the throne of Armenia, something her father and grandmother had previously attempted and failed.

Question: Who is John Of Montfort, Lord Of Tyre's maternal grandmother?