Looking at the Noble Variant feature "Retainer":
You have the service of three retainers loyal to your family. These retainers can be attendants or messengers, and one might be a majordomo. Your retainers are commoners who can perform mundane tasks for you, but they do not fight for you, will not follow you into obviously dangerous areas (such as dungeons), and will leave if they are frequently endangered or abused.
In another note, when I google searched the term majordomo (or Major-domo as the internet keeps calling it), I found that "and one might be a majordomo" from the block above fits nicely with the following line from the Noble Knight Variant block:
One of your commoner retainers is replaced by a noble who serves as your squire, aiding you in exchange for training on his or her own path to knighthood.
From what I understand, this gives you a +1 minion and +2 non-fighting servants, or +3 non-fighting servants (or none if you choose not to take this variation). However, that does come into question where their equipment would come from: Such as cooking utensils, tents, bedrolls, rations, weapons, clothing, etc.
Is it assumed that a servants would come equipped with their needs? (Such as a cook would have their tools, the majordomo would have his equipment, etc?)