The land will be passed on from generation to generation 'in perpetuity'. [='forever']
(..) who bent the knee to my ancestor, Aegon Targaryen. In exchange for his life and the lives of the Northmen, Torrhen Stark swore fealty to House Targaryen in perpetuity. Or do I have my facts wrong? I wasn't there, Your Grace. No, of course not. But still, an oath is an oath. And perpetuity means... what does perpetuity mean, Lord Tyrion? Forever. Forever. - So I assume, my lord... - ( sighs ) ...you're here to bend the knee. I am not. Oh. (..)2017 TvShow: Game of Thrones Title: The Queen's Justice Season: 7 Episode 3