Siege of Halicarnassus
Ada of Caria , the former queen of Halicarnassus , had been driven from her throne by her younger brother Pixodarus of Caria . 
<triplet> Ada of Caria <subj> Pixodarus of Caria <obj> sibling <triplet> Pixodarus of Caria <subj> Ada of Caria <obj> sibling