|Book(s)|| A Feast for Crows (mentioned)|
A Dance with Dragons (appendix)
A Feast for Crows
Septas Moelle, Aglantine, Helicent, and Nysterica examine Margaery Tyrell and discover that her maidenhead is not intact, giving grounds for Margaery's arrest by the Faith on charges of infidelity.
Behind the Scenes
Although Septas Helicent, Moelle, Aglantine and Unella are listed as members of the Most Devout in the Appendix of A Feast for Crows, the Appendix of A Dance with Dragons does not, possibly indicating that the former appendix is incorrect and none of the septas belong to the Most Devout.