What happened to the royalties from Winnie-the-Pooh?

I'm curious to know, what exactly transpired with the royalties generated from the beloved character Winnie-the-Pooh? Did the original creators or their heirs receive their fair share of the profits? Or were there any legal disputes or unforeseen circumstances that impacted the distribution of these royalties? It's fascinating to delve into the financial aspects of such a beloved and enduring property, and I'm eager to learn more about its financial journey over the years.