>>538792152
While she did give him the same medication the elder gave her for her father im fairly certain she realised it was poison before doing so and went through with the plot because the elder had her poison her own father unknowingly in the past.
Arctos put his clan and their lands under the custodialship of the church in order to prevent SA from getting it iirc, he is still the patriarch though.
Kinda like how the browntails are now a sub clan to the silverashes but ratatos remains its matriarch (after having lost the position back in BTI)