A similar scene happened in many noble families in the Northern Border. However, they were not as extravagant as Duke Cavadia, arranging things even for their illegitimate children.
Being dependent on five major clans for their livelihood, everyone's resources were far from abundant. Most of the family resources were allocated to the main family descendants or their collateral relatives.
Unless the clan was sparse in numbers, it was difficult for unrecognized illegitimate children to get a share of the pie.
At the end of the day, it was a case of too many monks and too little porridge. There wasn't much land left for them in the first place, the native clans needed a share, and the knights who came from afar to fight also needed to have a portion.
These were lessons learned through bloodshed. If the major nobles above dared to eat alone, the small nobles below dared to slack off.