Fulk of Anjou (Latin: Fulco, French: Foulque or Foulques; c. 1089/1092 – 13 November 1143), also known as Fulk the Younger, was the king of Jerusalem from 1131 until 1143 as the husband and co-ruler of Queen Melisende. Previously, he was the count of Anjou as Fulk V from 1109 to 1129. He had also been the count of Maine from 1110 to 1126 alongside his first wife, Countess Erembourg. His direct descendants were the rulers of the Angevin Empire and the Latin Kingdom of Jerusalem.
Tancred of Galilee (also Tancred the Marquis; c. 1075 – 5 or 12 December 1112) was an Italian nobleman of Frankish origin, counted amongst the four main leaders of the First Crusade. He is credited as the first Christian to enter Jerusalem after its conquest in 1099. Present at the foundation of the Kingdom of Jerusalem, Tancred became Prince of Galilee and regent of the Principality of Antioch in his uncle Bohemond's behalf. He then married princess Cecilie of France, thus becoming son-in-law to King Philip I of the Franks, and brother-in-law to King Fulk of Jerusalem (Cecilie's half-brother).
Despite his usual misidentification as an Italo-Norman, it is well established that Tancred's link to the Norman House of Hauteville was solely through his mother Emma (a sister of Bohemond I of Antioch). His long debated paternal lineage, on the other hand, has since been placed in the Northern-Italian ruling house of the Aleramids, a family of Frankish origin.
Beaufort or Belfort Castle, known locally as Qal'at al-Shaqif (Arabic: قلعة الشقيف, romanized: Qalʿat al-Shaqīf) or Shaqif Arnun (شقيف أرنون, Shaqīf Arnūn), is a Crusader fortress in Nabatieh Governorate, Southern Lebanon, about 1 kilometre (0.62 mi) to the south-south-east of the village of Arnoun. There was a fortification on the site before it was captured by Fulk, King of Jerusalem, in 1139 and construction of the Crusader castle probably began soon after. Saladin captured Beaufort in 1190, but 60 years later Crusaders re-took it. In 1268 Sultan Baibars finally captured the castle for the Islamic forces.
Beaufort provides one of the few cases in which a medieval castle proved of military value and utility in modern warfare as well, as shown by its late 20th-century history, especially during the 1982 Lebanon War.