Because of the legendary quality of the earliest accounts of her life, there is much debate among many secular scholars and even faithful Christians as to the authenticity of her biographies. It is said that Brigid was probably born at Faughart near Dundalk, Louth, Ireland, and that her parents were Dubhthach, a Pagan chieftain of Leinster, and Brocca, a Christian Pict and slave who had been baptised by Saint Patrick. A different account says that that Brigid's father was from Lusitania, kidnapped by Irish pirates and brought to Ireland to work as a slave. Tradition says that Brigid died between 522 and 526.
A more likely explanation is that the Christian Saint Brigid was actually based on the Irish deity Brigid, daughter of Dagda. The early Christian missionaries to Ireland created the legend of St. Brigid to deflect Irish faith away from their ancient gods.
Saint Brigids GAA was created in 1932.
Saint Brigids College
St. Brigids - Roscommon - GAA was created in 1889.
There is no patron saint of history or historians.
I can find no referrence to any saint who would be the patron saint of either history or historians.
We have no record of any family Saint Valentine may have had.
Saint Jerome
There is no particular saint.
Saint Gabriel was an Arch Angel he didn't have an earthly family...
Which Saint Francis? There are several.
There are patron saints of artists but no designated patron saint of art history.
Which Saint Augustine? There are several.