Louis II of Brieg
He was the second son of Henry VII with a Scar , Duke of Brzeg , but the eldest born by his second wife Margareta , daughter of Siemowit III , Duke of Masovia . 
<triplet> Henry VII with a Scar <subj> Margareta <obj> spouse <triplet> Margareta <subj> Henry VII with a Scar <obj> spouse <subj> Siemowit III, Duke of Masovia <obj> father <triplet> Siemowit III, Duke of Masovia <subj> Margareta <obj> child