Saint-Ghislain (Picard: Sint-Guilin) is a Walloon municipality located in the Belgian province of Hainaut. On 1 January 2006 the municipality had 22,466 inhabitants. The total area is 70.18 km², giving a population density of 320 inhabitants per km².

The town is named after St Ghislain. In the 7th century, with two unknown disciples Ghislain made a clearing in the vicinity of Castrilocus (now Mons), later taking up his abode at a place called Ursidongus, where he built an oratory or chapel dedicated to Saints Peter and Paul. Ursidongus was later named after him.

Google chose Saint-Ghislain in 2007 to host its new major European datacenter. Google currently has 12 people employed full time as of 10-13-2011.

Saint Ghislain (died October 9, 680) was a confessor and anchorite in Belgium. He died at the town named after him, Saint-Ghislain (Ursidongus).

He was probably of German origin. Ghislain lived in the province of Hainaut in the time of Saint Amand (d. 679) and Saints Waudru, Aldegonde, and Madelberte. With two unknown disciples he made a clearing in the vicinity of Castrilocus (now Mons, in Hainault), taking up later his abode at a place called Ursidongus, where he built an oratory or chapel dedicated to Saints Peter and Paul.

Aubert, Bishop of Cambrai summoned him to the episcopal presence in order to sound the intentions of this almost unknown hermit, but he afterwards accorded him efficient protection. During his visit to Cambrai Ghislain spent some time in the villa of Roisin and received as a gift the estates of Celles and Hornu. He soon entered into relations with St. Waudru, who was induced by him to build a monastery at Castrilocus, his former place of refuge.

It is probable that Ghislain influenced the religious vocation of St. Aldegonde, Abbess of Maubeuge, also of St. Madelberte and St. Aldetrude, of whom the first was the sister and the last two the daughters of St. Waudru. One day Aldegonde in her monastery of Maubeuge, had a vision in which, according to her biographer, the death of St. Amand, Bishop of Tongeren, was revealed to her. Ghislain visited the saint in her villa of Mairieu, near Maubeuge, and explained to her that the vision was an announcement of her own approaching death. The intercourse between Ghislain and Aldegonde brought about a perfect understanding between Maubeuge and the monastery founded at Ursidongus under Ghislain's direction. St. Waudru rewarded her counsellor with a portion of the villa of Frameries and of the oratory of Saint-Quentin, comprised within the boundaries of the villa of Quaregnon.

Joseph (Hebrew יוֹסֵף, "Yosef"; Greek: Ἰωσήφ) is a figure in the Gospels, the husband of the Virgin Mary and the earthly father of Jesus Christ (in distinction to God the Father, his "heavenly father"). In Roman Catholic, Eastern Orthodox and Anglican Christian traditions he is regarded as Saint Joseph.

The Pauline epistles, generally considered the earliest extant Christian records, make no reference to Jesus' father; nor does the Gospel of Mark, generally considered the first of the gospels. The first appearance of Joseph is therefore in the gospels of Matthew and Luke. Each contains a genealogy of Jesus tracing his ancestry back to King David, but the two are from different sons of David; Matthew follows the major royal line from Solomon, while Luke follows a minor line from Nathan, another son of David and Bathsheba. Consequently all the names between David and Joseph are different. According to Matthew "Jacob was the father of Joseph," while according to Luke, Joseph, or possibly Jesus, is said to be "of Heli." Some scholars reconcile the genealogies by viewing the Solomonic lineage as Joseph's major royal line, and the Nathanic lineage in Luke to be Mary's minor line.