Gustav of Saxe-Lauenburg
Gustav of Saxe-Lauenburg ( 31 August 1570 ( ? ) – 11 November 1597 ) was the eldest son of Magnus II , Duke of Saxe-Lauenburg and Sophia of Sweden , the daughter of King Gustav I of Sweden . 
<triplet> Gustav of Saxe-Lauenburg <subj> Magnus II, Duke of Saxe-Lauenburg <obj> father <subj> Sophia of Sweden <obj> mother <triplet> Magnus II, Duke of Saxe-Lauenburg <subj> Sophia of Sweden <obj> spouse <triplet> Gustav I of Sweden <subj> Sophia of Sweden <obj> child