A
butler or
steward, typically one with responsibilities beyond that
of a normal servant and who supervises the affairs of a whole
household. It has been used to
denote the head steward in the
household of a
sovereign or
nobleman, but those are getting rather
scarce these days.
The Italian equivalent of the word is maggiordomo, the
Spanish is mayordomo. Both stem from medieval latin maior
domus, which translates roughly to chief of the house.