Columbia subject headings:
Aquileia (Italy)--History.
Knights and knighthood--Italy--Friuli.
Ministerials--History.
Harvard subject headings:
Aquileia (Italy)--History.
Catholic Church. Patriarchate of Aquileia (Italy)--History.
Feudalism--Italy--Friuli-Venezia Giulia.
Friuli-Venezia Giulia--History.
Knights and knighthood--Italy--Friuli-Venezia Giulia.
Ministerials--History.
Ministerials--Italy--Friuli-Venezia Giulia.
Ministerials.
Princeton subject headings:
Aquileia (Italy)--History.
Knights and knighthood--Italy--Friuli-Venezia Giulia.
Ministerials--History.