TBH I liked my original intrepretation of the intro story over the true one. When I initially started the game, I thought that the Ancestor was the head of a giant family or a "house" , and the letter asking for the player to claim his birthright was actually a letter sent to every single remaining blood relative of that house. the heroes that come by the stage coach  *are* these potential heirs answering his invitation, answering the call to take back the lands that belonged to their family, instead of being just random people coming to collect coin and searching for adventure. the diverse group of heroes we get was just a way to show that these are the "2nd cousins bbastard nephew" kind of relatives, who have maybe never even been in any interaction with the house in question