Francis II, Duke of Saxe Lauenburg
Francis II of SaxeLauenburg , was the third son of Francis I of SaxeLauenburg and Sybille of SaxeFreiberg , daughter of Duke Henry IV the Pious of Saxony. From 1581 on he ruled SaxeLauenburg as duke.
As the third born son and with primogeniture in SaxeLauenburg Francis II made a military career in imperial services. In 1571 his highly indebted father Francis I resigned in favour of his eldest surviving son Magnus II, who had promised to redeem the pawned ducal demesnes with funds he gained as Swedish military commander and by his marriage to a Swedish princess. However, Magnus did not redeem pawns but further alienated ducal possessions, which ignited a conflict between Magnus and his father and brothers as well as the estates of the duchy, further escalating due to Magnus violent temperament.
Source: Wikipedia