Adoven Lodovka-Sud:
Can Adoven cede the BP generated by the sword school to his entourage Robert without losing the +1 Defense that gives Adoven his Lord Dominus title?
Yes - IF he is an Entourage-Cousin or Ally - in that way he (sort of) swears allegiance to you and/or your family.
The Entourage System is a mash up between all sorts of systems for swearing Loyalty / Service / Fealty rolled into one.
Entourage-assistants are your loyal servants / staff who will serve you loyally for ever, and these are the guys whose family will serve your family for generations.
Entourage-Cousins bring them into your family as a Junior member - and merge your fortunes. Every one benefits. Your wealth and holdings are no longer a Personal Holding, but a family holding (as yours is already with Vik and the baby) head of Household gets the title. For Example, if Henry dies, his title is passed on - probably to his daughter, perhaps to Bai, perhaps to Henry's Sister.
Entourage-Allies is almost same and ties two separate groups together, often with a Charter that cedes some land on a PC's estate to an Ally, in return for support etc. Their defence points would count in the family/estate totals and would count towards titles etc.
As I said, a mash up, trying to do about six things, but also trying to keep it simple - with one page of rules :)