Who inherited Winnie-the-Pooh fortune?

I'm curious to know, who was it that ended up inheriting the substantial fortune amassed by the beloved character Winnie-the-Pooh? Did it go to the creator's family, or was there a different arrangement in place? And furthermore, how was the value of this fortune determined, given the unique nature of the character and its enduring popularity? It's a fascinating question, and I'm eager to hear the answer.