Father Self was a member of Faction Paradox.
Father Self recruited Cousin Porsena to the Faction. When Porsena started losing hours of his time, he went to Father Self. Father Self collected four other Mothers and Fathers, and they confronted Cousin Antipathy, who had been causing it. (PROSE: Of the City of the Saved...)
Father Self planted a Faction Paradox mask in the 13th century for Giordano Bruno to find later. Bruno conducted a ritual to make contact with Father Self, who was in the Eleven-Day Empire. Father Self explained how Bruno's life was being manipulated by House Dvora, so that he could choose his own future. He helped Bruno store every bit of his memory mnemonically in everyone he knew, so that Bruno could be recreated after his death with a remembrance tank. He then transported the recreated Bruno to Anathema. (PROSE: De Umbris Idearum)