i watch movie Belle and pride and prejudice, they seem to think that amount is small, so i recall jane austen has £600 and she was a succesful published author.
so is she an heiress with almost double jane austen net worth?
There's always more to be said, but I have a past answer to Given the laws of primogeniture in the UK, where the eldest son in a family inherited all property, how exactly did younger sons and daughters of aristocratic families support themselves when a parent died? that may be helpful for you. Feel free to ask me any follow-up questions you may have.