1564 and 1566, ordered by Duke Francis I, Magnus I's son, on the instigation of the Ritter-und-Landschaft, saw Lutheran preachers in many parishes. In 1566, Francis I appointed the Superintendent Franciscus Baringius as the first spiritual leader of the church in the duchy, not including Hadeln. Francis I conducted a thrifty reign and resigned in favour of his eldest son Magnus II once having exploited all his means in 1571. Magnus II promised to redeem the pawned ducal demesnes with funds he gained as a Swedish military commander and by his marriage to Princess Sophia of Sweden. However, Magnus did not redeem pawns but further alienated ducal possessions, which ignited a conflict between Magnus and his father and brothers Francis (II) and Maurice as well as the estates of the duchy, further escalating due to Magnus' violent temperament. In 1573, Francis I deposed Magnus and reascended to the throne while Magnus fled to Sweden. The following year, Magnus hired troops in order to retake Saxe-Lauenburg via force. Francis II, an experienced military commander in imperial service, and Duke Adolphus of Schleswig and Holstein at Gottorp, then Lower Saxon Circle Colonel (Kreisobrist), helped Francis I to defeat Magnus. In return Saxe-Lauenburg ceded the bailiwick of Steinhorst to Gottorp in 1575. Francis II again helped his father to inhibit Magnus' second military attempt to overthrow his father in 1578. Francis I then made Francis II his vicegerent actually governing the duchy. Shortly before his death in 1581 (and after consultations with his son Prince-Archbishop Henry of Bremen and Emperor Rudolph II, but unconcerted with his other sons Magnus and Maurice), Francis I made his third son, Francis II, whom he considered the ablest, his sole successor, violating the rules of primogeniture. This severed the already difficult relations with the estates of the duchy, which fought the ducal practice of growing indebtedness. The general church visitation of 1581, prompted by Francis II, showed poor results as to the knowledge, practice and behaviour of many pastors. Baringius was held responsible for these grievances and replaced by Gerhard Sagittarius in 1582. Finally in 1585, after consultations with his brother Prince-Archbishop Henry, Francis II decreed a constitution (Niedersächsische Kirchenordnung; Lower Saxon Church Order), authored by Lübeck's Superintendent Andreas Pouchenius the Elder, for the Lutheran church of Saxe-Lauenburg. It constituted the Lutheran state church of Saxe-Lauenburg, with a general superintendent (as of 1592) and consistory seated in