Frederick Louis of Holstein-Sonderburg-Beck (Friedrich Ludwig von Holstein-Sonderburg-Beck),
Duke of Schleswig-Holstein-Sonderburg-Beck, was born on
April 6,
1653 in Beck. He was the son of
August Philipp, Duke of Schleswig-Holstein-Beck and
Marie Sibylle von Nassau-Saarbrücken. Friedrich died on
March 7,
1728 in
Königsberg.
On 1 January 1685 in Agustenburg, Friedrich married Luise Charlotte of Schleswig-Holstein-Sonderburg-Augustenburg, daughter of Ernest Gunther, Duke of Augustenborg and Augusta of Glucksburg.
Friedrich was succeeded as duke by his son, Peter August, Duke of Schleswig-Holstein-Sonderburg-Beck.