BARONY OF CULMULLIN
The Barony of Culmullin, County Meath, Ireland, originates from the 12th Century when it was held by the Fitzleon family. The Barony passed to Sir Simon de Geneville through marriage to Joan Fitzleon, daughter of John Fitzleon. Sir Simon's parents were Geoffrey de Geneville and Matilda de Lacy.
The first reference to the Barony of Culmullin is in the early decades of the 14th century when Sir John Cusack is stated to have married Joan de Geneville, co-heir of Sir Simon de Geneville, Baron of Culmullin.
Sir Simon administered his estates from Culmullin Castle and was called to Parliament as Baron of Culmullin in 1375. Sir Simon was succeeded by two generations of heiresses. His daughter, Elizabeth de Geneville, married William de Loundres and bore a daughter, also Elizabeth, who married Sir Christopher Preston, 2nd Baron Gormanston. The Barony remained within the Preston family, Barons and later Viscounts Gormanston until the title passed to the McIntyre-Younger family, Lords of Middlemarsh and Cherrington.
Here are some of my favorite websites:
A Really Cool page (http://www.culmullinparish.ie/location.html)
Another Really Cool page (http://www.noblesocietyofcelts.org.htm)