Duke of Syracuse
Duke of Syracuse "" is a Spanish–Duosicilian royal title that was created in 1940 in the defunct Peerage of the Two Sicilies by Infante Alfonso , heir to the throne of the Two Sicilies , for his newborn daughter Princess Inés . 
<triplet> Infante Alfonso <subj> Princess Inés <obj> child <triplet> Princess Inés <subj> Infante Alfonso <obj> father