House Arvanxi is a noble house residing in the city of Westcrown in Cheliax.
Formerly possessing great power and influence, House Arvanxi is a house in decline. When a favored daughter named Ileosa Arvanxi abandoned the family to marry the king of Korvosa, it created a scandal that the noble house never fully recovered from. Fortunately for the family, it continued to wield authority through city mayor Aberian Arvanxi.
Unlike the other 11 major noble families in Westcrown, House Arvanxi focuses on the mainland instead of the city's Rego Corna district.
Three lesser families are beholden to House Arvanxi: House Mhartis, House Ciucci and House Rasdovain.