Duke of Narbonne
Raymond's son and successor , Alfonso Jordan , also employed the title with royal approval ( as "Amphusus dux Narbonensis provincie" ) and his son , Raymond V placed it first before his other titles as an implication of its importance ( probably related to its Roman connection ) . 
<triplet> Alfonso Jordan <subj> Raymond V <obj> child <triplet> Raymond V <subj> Alfonso Jordan <obj> father