Friederike was born on 9 October 1811 at Gottorp Castle near Schleswig in the Duchy of Schleswig as Princess Friederike of Schleswig-Holstein-Sonderburg-Beck, the second-eldest daughter of Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Beck, and Princess Louise Caroline of Hesse-Kassel.

Friederike's father was the head of the ducal house of Schleswig-Holstein-Sonderburg-Beck, a junior male branch of the House of Oldenburg which had occupied the throne of Denmark since 1448.
Through her father, Friederike was thus a direct male-line descendant of King Christian III of Denmark.

Friederike's mother was a daughter of Landgrave Charles of Hesse, a Danish Field Marshal and Royal Governor of the duchies of Schleswig and Holstein, and his wife Princess Louise of Denmark, a daughter of Frederick V of Denmark.
On 6 June 1825, Duke Friedrich Wilhelm was appointed Duke of Glücksburg by his brother-in-law Frederick VI of Denmark, as the elder Glücksburg line had become extinct in 1779.
He subsequently changed his title to Duke of Schleswig-Holstein-Sonderburg-Glücksburg and founded the younger Glücksburg line.
Friederike was born on 9 October 1811 at Gottorp Castle near Schleswig in the Duchy of Schleswig as Princess Friederike of Schleswig-Holstein-Sonderburg-Beck, the second-eldest daughter of Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Beck, and Princess Louise Caroline of Hesse-Kassel.
Friederike's father was the head of the ducal house of Schleswig-Holstein-Sonderburg-Beck, a junior male branch of the House of Oldenburg which had occupied the throne of Denmark since 1448. Through her father, Friederike was thus a direct male-line descendant of King Christian III of Denmark.
Friederike's mother was a daughter of Landgrave Charles of Hesse, a Danish Field Marshal and Royal Governor of the duchies of Schleswig and Holstein, and his wife Princess Louise of Denmark, a daughter of Frederick V of Denmark. On 6 June 1825, Duke Friedrich Wilhelm was appointed Duke of Glücksburg by his brother-in-law Frederick VI of Denmark, as the elder Glücksburg line had become extinct in 1779. He subsequently changed his title to Duke of Schleswig-Holstein-Sonderburg-Glücksburg and founded the younger Glücksburg line.
Princess Friederike of Schleswig-Holstein-Sonderburg-Glücksburg