Question: Who is Humphrey Of Montfort's paternal grandmother?

Knowledge 1: Humphrey of Montfort
Humphrey of Montfort (died 12 February 1284) was a nobleman of the Kingdom of Jerusalem.Humphrey was the second son of Philip of Montfort, Lord of Tyre by his second wife Maria of Antioch-Armenia, Lady of Toron.On 1 October 1274, Humphrey married Eschive d'Ibelin (1253–1312), daughter of John d'Ibelin, Lord of Beirut and his wife Alice de la Roche sur l'Ognon.Their children were:In 1282, upon the death of his sister-in-law Isabella of Ibelin, Eschive succeeded her as lady of Beirut.When Humphrey's older brother Jean died in 1283, Humphrey was allowed to succeed to Jean's Lordship of Tyre by King Hugh III of Cyprus, who had a few years earlier confirmed the Montforts in their possessions of Tyre but reserved the right to re-take the fiefdom if Jean died without issue.However, upon Humphrey's death 6 months later, the new king Henry II retook the fiefdom (probably because he considered Humphrey's sons too young to guarantee the defence of Tyre) and granted it to his sister Margaret. [SEP] Knowledge 2: Philip of Montfort, Lord of Tyre
Philip Ι of Montfort, (d. 17 March 1270,Tyre) was Lord of La Ferté-Alais and Castres-en-Albigeois 1228–1270, Lord of Tyre 1246–1270, and Lord of Toron aft.1240–1270.He was the son of Guy of Montfort and Helvis of Ibelin (daughter of Balian of Ibelin).
Knowledge 1: Humphrey of Montfort
Humphrey of Montfort (died 12 February 1284) was a nobleman of the Kingdom of Jerusalem.Humphrey was the second son of Philip of Montfort, Lord of Tyre by his second wife Maria of Antioch-Armenia, Lady of Toron.On 1 October 1274, Humphrey married Eschive d'Ibelin (1253–1312), daughter of John d'Ibelin, Lord of Beirut and his wife Alice de la Roche sur l'Ognon.Their children were:In 1282, upon the death of his sister-in-law Isabella of Ibelin, Eschive succeeded her as lady of Beirut.When Humphrey's older brother Jean died in 1283, Humphrey was allowed to succeed to Jean's Lordship of Tyre by King Hugh III of Cyprus, who had a few years earlier confirmed the Montforts in their possessions of Tyre but reserved the right to re-take the fiefdom if Jean died without issue.However, upon Humphrey's death 6 months later, the new king Henry II retook the fiefdom (probably because he considered Humphrey's sons too young to guarantee the defence of Tyre) and granted it to his sister Margaret. [SEP] Knowledge 2: Hannah Arnold
Hannah Arnold, also known as Hannah Waterman King, was the grandmother of Benedict Arnolds children.
Knowledge 1: Humphrey of Montfort
Humphrey of Montfort (died 12 February 1284) was a nobleman of the Kingdom of Jerusalem.Humphrey was the second son of Philip of Montfort, Lord of Tyre by his second wife Maria of Antioch-Armenia, Lady of Toron.On 1 October 1274, Humphrey married Eschive d'Ibelin (1253–1312), daughter of John d'Ibelin, Lord of Beirut and his wife Alice de la Roche sur l'Ognon.Their children were:In 1282, upon the death of his sister-in-law Isabella of Ibelin, Eschive succeeded her as lady of Beirut.When Humphrey's older brother Jean died in 1283, Humphrey was allowed to succeed to Jean's Lordship of Tyre by King Hugh III of Cyprus, who had a few years earlier confirmed the Montforts in their possessions of Tyre but reserved the right to re-take the fiefdom if Jean died without issue.However, upon Humphrey's death 6 months later, the new king Henry II retook the fiefdom (probably because he considered Humphrey's sons too young to guarantee the defence of Tyre) and granted it to his sister Margaret. [SEP] Knowledge 2: Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.

Answer: Helvis of Ibelin