1. DUCA 2. DUCA DUCALE DUCALIS DUCALIS Vestitus DUCALITER DUCAMEN DUCANA 1. DUCARE 2. DUCARE DUCARIA DUCARIUM DUCARIUS Ducaria Scrofa DUCAS Duccas DUCATISSA DUCATONUS DUCATOR DUCATORIUM DUCATRIX 1. DUCATUS 2. DUCATUS Ducatum Ducatus 3. DUCATUS 4. DUCATUS Ducatus Ducatus Rhodi 5. DUCATUS 6. DUCATUS 7. DUCATUS DUCCAS DUCHA