Loughglynn, built circa 1715, was the seat, or main residence, of the Dillon family in Costello who became absentee landlords in the nineteenth-century.
In the context of Irish history, Loughglynn, constructed circa 1715, was the primary dwelling and seat of power for the Dillon family in Costello, who eventually became absentee landlords in the 19th century, exercising influence from afar.