I have traced my great-great-great-grandfather to Loughgilly, Armagh where I believe his father Robert Porter lived at Mount Norris. Looking at the freeholder records at the Public Record Office, I notice that in 1815 properties could be passed on to descendents and Princess Amelia or Prince Leopold. Later in 1824 this became only King George III , Prince of Wales, Duke of Clarence and Bishop Osnaburgh. Was this some kind of land seizure? As it coincides with my ancestors coming to Britain, where they became Sergeants of the Police.
Any comments or advice about where to go for further information (including birth/marriage records) would be very much appreciated.
Thank you.