Guy of Ibelin, constable of Cyprus
Guy of Ibelin (French: Guy d'Ibelin)
(1215/1218 – after May 1255) was marshal and constable of the kingdom of Cyprus.
He was the fifth son of John of Ibelin, the Old Lord of Beirut, and of Melisende of Arsuf.
He had close relations with the king of Cyprus, Henry I, acting as witness for two royal decrees; he was probably one of the king's executors named in a papal bull of Pope Alexander IV.
With his brother Baldwin of Ibelin, he led the Cypriot crusaders in the siege of Damietta in 1248.
According to the medieval chronicler Jean de Joinville, he was one of the most accomplished knights of his generation and a benevolent ruler on Cyprus.
Joinville recounts an episode when he, Guy and Baldwin had been taken prisoner by saracen rebels:
Guy married Phillipa Berlais, daughter of Aimery Berlais.
Their children were:
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.
Helvis of Ibelin
Helvis of Ibelin( after 1178 – before 1 June 1216) was a daughter of Balian of Ibelin and his wife, Maria Komnene, who was the dowager Queen of Jerusalem.
Helvis was a member of the House of Ibelin.
She was Lady of Sidon by her first and second marriage.
Philip of Ibelin (1180–1227)
Philip of Ibelin( 1180- 1227) was a leading nobleman of the Kingdom of Cyprus.
As a younger son of Balian of Ibelin and the dowager queen Maria Komnene, he came from the high Crusader nobility of the Kingdom of Jerusalem.
Guy of Ibelin (bishop)
Guy of Ibelin( Fr:" Guy d' Ibelin")( died 29 March 1367) was the dominican bishop of Limassol, Cyprus from 27 April 1357 until his death.
He belonged to the noble Cypriot house of Ibelin, closely linked by intermarriage with the kings of Cyprus.
His father Balian of Ibelin( d. 28 October 1333), Lord of Arsuf, was a direct descendant of the first Balian of Ibelin, an important crusader.
His mother, Margaret of Ibelin, continued to hold the title Lady of Arsuf after her husband's death.
In the second half of the fourteenth century the fortunes of the house of Ibelin were in decline, as the once- powerful family became extinct.
Guy's brother Philip became the last Ibelin to hold the title Lord of Arsuf.
He was executed in Genoa in late 1373 for taking part in the assassination of King Peter I of Cyprus in 1369; King James I of Cyprus subsequently bestowed the title on John of Neviles, viscount of Nicosia, in 1389.
Instead of receiving a prebend, the normal path for a younger son of a high aristocratic family to join the church and enjoy the comfortable life of an ecclesiastical nobleman, Guy chose to join the austere dominican order, perhaps in the same monastery in Nicosia where he was later laid to rest.
Two years after his elevation to bishop in 1357, he was the presiding bishop at the coronation of Peter I in the cathedral of St Sophia, Nicosia.
It appears that he took part in the campaign to capture Alexandria in 1365, before succumbing to illness in his mansion in Nicosia in 1367.
Guy bequeathed 20,000 bezants towards the construction of the cathedral of St Nicholas in Limassol.
A detailed inventory of his belongings survives him; although his main residence, in addition to his three rural estates, was not furnished in an opulent manner, – Turkish carpets and cushions typical of the Latin orient replacing courtly tapestries – he still indulged in hunting, the favourite pastime of the nobility, having three falconers in his service, a modest number for the time.
John of Caesarea
John( died 1238/ 41) was the Lord of Caesarea from 1229 and an important figure in the kingdoms of Cyprus and Jerusalem.
He was the only son of Walter III of Caesarea and Marguerite d' Ibelin, daughter of Balian of Ibelin.
He was often called" the young lord of Caesarea" throughout his life to distinguish him from his father, who had been called" the old lord of Caesarea".
Guy of Ibelin (1286–1308)
Guy of Ibelin( 1286–1308), Lord of Nicosia, was the son of Balian of Ibelin, seneschal of the kingdom of Cyprus, and of Alice of Lampron.
In 1303, with papal dispensation, he married his cousin Isabella of Ibelin, daughter of Baldwin of Ibelin and of Marguerite de Giblet.
Their only child was Alix of Ibelin, second wife of Hugh IV of Cyprus.
Guy was buried on September 8, 1308 in the Premonstratensian Abbey of Bellapais near Kyrenia, Cyprus.
Balian of Ibelin (1240–1302)
Balian of Ibelin (1240–1302), seneschal of Cyprus, was a son of Guy of Ibelin, constable of Cyprus, and Philippa Berlais.
He married Alice of Hetumids of Lampron, daughter of Escive de Poitiers (daughter of Raymond-Roupen) and they had:
Balian of Ibelin
Balian of Ibelin( 1143 – 1193), also known as Barisan the Younger, was a crusader noble of the Kingdom of Jerusalem in the 12th century.
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).

Question: Who is Balian Of Ibelin (1240–1302)'s paternal grandmother?
Answer: Melisende of Arsuf