I'm researching three sisters from London who I believe are the daughters of Henry Addis, a hops merchant: Cecilia, Mary Ann, and Aloysia, all born between 1780-1795. Cecilia married Wm Lorymer (Wales) and Mary Ann married Count Pio Cavalli de St Germain (Italy). I can find nothing on Aloysia, even though all three girls enrolled in a convent school in York in 1799.
This research is part of my PhD project, so any information will be greatly appreciated. Feel free to contact me directly if you'd like to take this discussion off-board.