The Dutiful Daughter is a Despoiler-class battleship, a gift for Kimery, to be a flagship for 'her' Daughters of the Word. It is to be a beacon for all Covens of Daughters now that Lorgar has 'approved' their existence in the Hosts by mention them in the Word and by writing the foreword and a whole chapter in their prayerbook "Piety and Devotion" (the rest is written by Castor and Kimery; they are very pleased that Lorgar himself has written in the book, thus marking it as part of the ever living Word).

But the Dutiful Daughter is not a gift from Lorgar or Castor, it is a gift from a different patron, namely Fulgrim, prince of Slaanesh, and Primogenitor of the Emperor's Children. According to rumour he sent Lucius and a full chapter to 'negotiate' with a forge world in the Eye of Horus for the right to have the newly forged battleship. The Dark Prince has seen the Daughters and blessed them. Blessed them by sending his own handmaidens to possess the worthy fallen. The Prince approves of the way they corrupt and mistreat the hated Sisters of Battle, and how they turn the concept against the hated Imperium of Man. Fulgrim took this opportunity to support his brother Lorgar by offering this princely gift to Kimery. But most importantly he gifts the daughters with a new, lovely home. Unlike the WB's dark and gothic halls, filled with heavy incense and deep rumbling Astartes chantings, blood, and messy sacrifices. The Daughters get a home that's new and clean and pleasing to the eye (and the ears). Natural he demands no payment or price for the gift...only that Kimery and her daughters think well of him. In no way does he want to shoulder his way into Lorgar's operations, nor does he wish to curry favour with Castor for his own, inscrutable reasons.

To keep with the feminine aspect of the daughters, Fulgrim had what male crew remained castrated. Later male crew (and warriors) have carried on the tradition and ritually self-mutilated themeselves. They may have had some help from the Deacons of Faith, whom starangley found that they, as Very Holy Men of the Word, did not need to be castrated. To this day all males (except Deacons) who serve on the Daughter are castrated.