Bő was the name of a gens (Latin for "clan"; nemzetség in Hungarian) in the Kingdom of Hungary, which initially possessed landholdings and villages in Somogy County.
Along with chieftain Bogát's kinship, they settled in Somogy County south to Somogyvár and centered around Bő (present-day wasteland near Somogyjád).
Historian György Györffy considered Bő, ancestor of the kindred belonged to the escort of Bogát and occupied the northern watersheds between Lake Balaton and the Drava river.
Izsép, son of John, entered the service of Prince Coloman, King Béla IV's brother.
[4] John II, who survived the aforementioned battle, inherited his father's possessions in Somogy County, including Bő with its clan monastery, half of Magyari (today Buzsák) and a portion of Gyugy.
[6] John sold the land Terebezd and the right of patronage over the Bő monastery to vice-judge royal Nicholas Tengerdi in 1257.
[6] John became one of the leading noblemen of Somogy County by the early 1260s, acted as judge in various local lawsuits.
Although Trepk remained nominally loyal to Ladislaus IV then Andrew III, alongside other local nobles, he was forced to acknowledge the legitimacy of the court of oligarch Henry Kőszegi, who extended his influence over southeastern Transdanubia, including Somogy County by the early 14th century.
[12] A contemporary of his distant relative John II (see above), Stephen was one of the four noble judges (Hungarian: szolgabíró) in Somogy County since the early 1260s.
[13] Although Stephen originated from a relatively less significant branch of the Bő clan, his sister married Gregory II Monoszló, a prominent landowner in Southern Transdanubia and Slavonia.
[15] In his last will and testament, Egidius donated Darnóc Castle (today Slatinski Drenovac, Croatia) to his cousins in 1298, however both Peter and Michael predeceased him without male descendants.