Ibelin was a castle in the Crusader Kingdom of Jerusalem in the 12th century (at modern Yavne, 31°49′12″N 34°42′47″E / 31.820°N 34.713°E / 31.820; 34.713), which gave its name to an important family of nobles.

The site of Ibelin had been occupied since ancient times; the Romans called it Iamnia. The crusader castle was built in 1141 between Jaffa and Ascalon, near Montgisard and Ramla. At that time Ascalon was still controlled by Fatimid Egypt, and Egyptian armies marched out every year from Ascalon to attack the crusader kingdom. Ibelin was constructed in order to contain these attacks to a smaller area. The original castle, built by King Fulk of Jerusalem, had four towers.

The Ibelin family rose from relatively humble origins to become one of the most important noble families in the Crusader states of Jerusalem and Cyprus. The family claimed to be descended from the Le Puiset viscounts of Chartres, but this appears to be a later fabrication. They were more probably from Pisa Italy, the name 'Barisan' being found in Tuscany and Liguria related to Azzopardi family. Its first known member Barisan was apparently a knight in service of the Count of Jaffa and in the 1110s became constable of Jaffa. As reward for his capable and loyal service, around 1122 he married Helvis, heiress of the nearby lordship of Ramla.

Natacha Atlas (Arabic: نتاشا أطلس‎ ; born 20 March 1964) is a Belgian singer known for her fusion of Arabic and Western electronic music, particularly hip-hop. She once termed her music "cha'abi moderne" (modern popular music). Her music has been influenced by many styles including Arabic, hip hop, drum 'n' bass and reggae.

Atlas began her career as part of the world fusion group Transglobal Underground. In 1995, she began to focus on her solo career with the release of Diaspora. She has since released seven solo albums and been a part of numerous collaborations. Her version of "Mon Amie La Rose" became a surprise success in France, reaching 16 on the French Singles Charts in 1999. She is a Goodwill Ambassador for the United Nations Conference Against Racism.

Atlas was born to a father of Moroccan, Egyptian, and Palestinian ancestry who was born in Jerusalem and a British mother who had converted to Islam. Her paternal grandfather was born in Egypt, but grew up in Palestine, immigrating to Europe at age 15. She concedes to being "maybe 10 percent Jewish or something." Atlas says the claim that her father is purely Jewish and not Arab is "one of those things where someone had a grudge against me and wanted to hurt me. My great-great-grandfather was Jewish. But Jews have always been part of Arab society, so it’s not so unusual for someone to find out that they have Jewish blood. At the end of the day, we really are so connected."

Balian of Ibelin (French: Balian d'Ibelin; early 1140s–1193) was an important French noble in the crusader Kingdom of Jerusalem in the 12th century.

Balian was the youngest son of Barisan of Ibelin, and brother of Hugh and Baldwin. His father, a knight in the County of Jaffa, had been rewarded with the lordship of Ibelin after the revolt of Hugh II of Le Puiset. Barisan married Helvis of Ramla, heiress of the wealthy lordship of Ramla. Balian's name was also Barisan, but he seems to have adapted the name (found in Tuscany and Liguria) to the Old French "Balian" c. 1175–76; he is sometimes known as Balian the Younger or Balian II when his father is also referred to as Balian. He is also called Balian of Ramla or Balian of Nablus. In Latin his name appears variously as Balian, Barisan, Barisanus, Balianus, Balisan, and Balisanus. Arabic sources call him Balian ibn Barzan', which translates "Balian, son of Barzan (or Barisan). His precise year of birth is unknown, but he was of the age of majority (usually 15) by 1158, when he first appears in charters, having been described as under-age ("infra annos") in 1155.