Q:Facts: - death place: reval , russian empire - title: duke of schleswig-holstein-sonderburg-beck - reign: 22 september 1774 -- 24 february 1775 - mother: luise charlotte of schleswig-holstein-sonderburg-augustenburg - spouse: princess sophie of hesse-philippsthal natalia nikolaievna , countess golovine - death date: 22 march 1775 - house: house of schleswig-holstein-sonderburg-beck - father: frederick louis , duke of schleswig-holstein-sonderburg-beck - birth date: 07 december 1697 - issue: karl anton august catherine - birth place: konigsberg , brandenburg-prussia Based on these bullet points, write a short biography describing the life of peter august , duke of schleswig-holstein-sonderburg-beck .
A:
peter august friedrich , duke of schleswig-holstein-sonderburg-beck -lrb- 7 december 1697 -- 22 march 1775 -rrb- was a duke of schleswig-holstein-sonderburg-beck .he was the fifth and youngest son of frederick louis , duke of schleswig-holstein-sonderburg-beck and his wife duchess luise charlotte of schleswig-holstein-sonderburg-augustenburg .born in konigsberg , brandenburg-prussia , peter august became governor general of reval -lrb- tallinn -rrb- , governor of estonia , and a field marshal in the russian imperial army .he died in reval .he was only the '' titular '' duke , because he did not inherit the domain of beck .it had been inherited by his father 's older brother , duke august -lrb- 1652 -- 1689 -rrb- , and nephew frederick william i -lrb- 1682 -- 1719 -rrb- , and was then sold by the latter 's widow to peter august 's older brother , duke frederick william ii -lrb- 1687 -- 1749 -rrb- , in 1732 .but he re-sold it in 1745 to baroness magdalena von ledebur-konigsbruck .thus , by the time that peter august became the head of this cadet branch of the danish royal dynasty , he was '' duke of schleswig-holstein-sonderburg-beck '' in name only .he is the male line ancestor of margrethe ii of denmark , harald v of norway and charles , prince of wales .