Narcissa nodded sadly. "Yes, it is quite possible. If a member feels betrayed or left out by the family, they are able to disown themselves from the family by banishing the family magic from their magical cores. It is not as painful, when I have disowned Sirius and Bellatrix, because I have disowned them against their wills and that is the reason, why magical disownments inflicted by heads of houses are very painful. But if a member is self-disowning himself or herself from the family against the wishes of the head of house, then the pain would be inflicted to the head of house. This disowned member would also disgrace the family by doing this. Self-disownments are seen as the last resort and can only be done, if Lady Magic accepts it. And if they are done, then that family will lose their titles, wealth and nobility and they would be deemed as blood traitors."