A building which, in 250 years of occupancy, has been known variously as Granby Hill, Baymount Castle and Manresa House will be the subject of a lecture, The many lives of Baymount Castle: the history of a Dollymount house, by local historian Bernardine Ruddy at 7:30 p.m. The castle has been home to a diverse group of residents, at different times housing a Church of Ireland bishop, a Catholic girls school and a boys’ boarding school. Its current residents – a Jesuit Community – are the longest continuous occupants of this interesting property since it was leased by George Vernon in 1763. Limited access to the Castle may be allowed to early visitors.