User blog comment:B214/Talk About What You Want! 3/@comment-5.36.142.215-20150504212946/@comment-26209278-20150504213912

Well, from the LN perspective, it was only ones that held a grudge against Baraqiel that did anything towards Shuri (Akeno's mother), as they revealed his location to enemies of Baraqiel, who then attacked his home and killed Shuri.

Don't remember what the anime said, if the killers were from the Himejima clan or not....

But probably not, as she had fallen in love with a member of a different religion(or race, whichever)....