Complex sentence: Among the most significant families in the seigniory of Ittre were those of Ittre, Rifflart and Trazegnies d' Ittre, and in Fauquez, the families of Ittre, Enghien, Fauquez and Herzelles.
Split into simpler sentences: Among the most significant families in the seigniory of Ittre, let us quote the Houses of Ittre, Rifflart and Trazegnies d' Ittre. For Fauquez, let us note the families of Ittre, Enghien, Fauquez and Herzelles.