Sources

1) Source: The Henry Project . External Link
https://fasg.org/projects/henryproject/data/fulk0004.htm. Reference: Foulques (Fulk, Fulco) IV "le Rechin" (Questionable reliability of evidence)
2) Source: Fragmentum Historiae Andegavensis ...in the year of the Incarnation of the Lord one thousand and sixty... I was seventeen years old when he made me a knight" (Data from secondary evidence)
3) Source: The Henry Project . External Link
https://fasg.org/projects/henryproject/data/bertr000.htm. Reference: Bertrade de Montfort l'Amaury (Questionable reliability of evidence)
4) Source: The Ecclesiastical History of England and Normandy: Volume III "For Richard, son of Gonnor, and duke of Normandy, was father of Robert I., whose son was William the Conqueror, the father of Duke Robert, who was father of William the Clito. On the other side, Robert the archbishop and count, who was brother of Duke Richard, had a son named Richard, count of Evreux, which Richard had a daughter called Agnes, wife of Simon, who bore Bertrade, Fulk's mother, and whose daughter Sibylla was." (Data from secondary evidence)
5) Source: The Ecclesiastical History of England and Normandy: Volume III " In short, he divorced his noble and excellent wife Bertha, daughter of Florence, duke of Frisia, who had borne him two children, Lewis and Constance, and married Bertrade, who had lived nearly four years with Fulk of Anjou". Reference: AD 1093
6) Source: The Henry Project . External Link
https://fasg.org/projects/henryproject/data/fulk0005.htm. Reference: Foulques (Fulk) V (Questionable reliability of evidence)
7) Source: The Ecclesiastical History of England and Normandy: Volume III "Elias, son of John and Paula, and cousin of Hugh count of Maine, was distinguished for his piety to God… He married an illustrious lady, Matilda, daughter of Gervase, who was the son of Robert surnamed Brochard, brother of Gervase, archbishop of Rheims… His wife bore him a daughter named Eremburga, who, when she became marriageable, was espoused to Fulk, then Count of Anjou, and who is now king of Jerusalem, and gave birth to an illustrious progeny, Geoffrey and Elias, Matilda and Sybilla ; the daughters marrying the sons of kings, but by God's providence which disposes all things well, they soon became widows." (Data from secondary evidence)
8) Source: The Chronicle of Robert of Torigni "Obiit Guillelmus Talavacius, comes Pontivi, et sucessit ei Johannes, nepos suus, in comitatu Pontivi, Guidone primogenito suo. In terra vero quam count of tenebat de rege Anglorum in Normannia et in Cenomannensi pago, successit ei Johannes comes, Alius ejus. Iste duxit filiam comitis Heliae, fratris comitis Gaufridi Andeeavorum et ducis Normannorum.". Reference: 1171 (Data from secondary evidence)