User blog comment:B214/Volume 23 discussion blog/@comment-185.112.105.215-20170608020531/@comment-30924344-20170609163054

No it was done by Vali's dad.

"After Vali was sheltered by the Grigori, Vali’s chichi (Father) had immediately erased his haha’s (Mother's) memories and discarded her." Volume 21 - Determination