(UNDERGOING MAJOR EDITING! Sorry!) Roderick Prince's diary was a family record kept by Roderick Nolan Prince. A notable entry from it said "My family's the greatest treasure ever to me, I could be dirt poor, not have anything but the clothes on my back, the land of Eire, my wand and my family and I'd be the richest wizard in the world." It chronicled his life as an Auror and his family life up until just before his death.