The Maernos (MAY-er-noz) family was a human noble family in Waterdeep. It concerned itself with financial activities such as banking and moneylending. Its coat of arms consisted of a pair of hands with green sleeves and three silver spear heads on a blue field. As of 1370 DR the family head was Lord Ultas Maernos, whose wife and children all died in an Amnian plague in 1345 DR. The family villa in Waterdeep, as of 1374 DR, had lion statues adnorning the walls.