Ergo's father was a pariah among Corpus and obsessed with holokeys. He collected them religiously, leaving the impression of a deranged conspiracy theorist, which would be a true observations to someone looking from the outside in. Glast Sr would dedicate his life to locating holokeys, even getting his son involved, spending days and even weeks in front of a computer, calculating possible coordinates for holokeys.
Father and son would bond over this search but also become alienated. Work came first, family was second. Ergo was often warned not to get too attached to anyone and to definitely not trust anyone. Glast Sr was on the board, during times when the Corpus Board of Directors had an odd number of members. He was a thorn in everyone's side - smart businessman, rich, strangely charismatic but still managed to always sway board votes in his way, often disturbing the pre-made deals some of the other members had planned.