[2] At the death of his grandfather in February 1676, his father had inherited the large manors of Schackenborg and Gram in Southern Jutland, and Gisselfeld in Zealand.
[3] From 1692 he was educated at the knight academy in Copenhagen that prepared aristocratic youth for state and military service, and in 1695, he was made a chamberlain at the Danish court.
[3] On 19 October 1697, he was appointed amtmann of the Amt of Riberhus, and on 15 August the following year, he was awarded the Order of the Dannebrog.
[2] He was succeeded as count of Schackenborg by his eldest surviving son, Otto Didrik Schack.
[1][4] Schack married firstly on 16 March 1699 in the chapel of Christiansborg Palace Countess Anne Margrethe Reventlow, daughter of Grand Chancellor Count Conrad von Reventlow and Sophie Amalie von Hahn, by whom he had four children.