Frederica Louise Caroline Sophie Alexandrina of Mecklenburg-Strelitz (German: Friederike Louise Caroline Sophie Alexandrine; 3 March 1778 – 29 June 1841) was a German princess who married successively Prince Louis Charles of Prussia, Prince Frederick William of Solms-Braunfels, and her first-cousin Prince Ernest Augustus, Duke of Cumberland (later King of Hanover).
Princess Frederica Charlotte of Prussia (Friederike Charlotte Ulrike Katharina; 7 May 1767 – 6 August 1820) was a Prussian princess by birth and a British princess by marriage. She was the eldest daughter of King Frederick William II of Prussia and the wife of Prince Frederick, Duke of York and Albany , second son of King George III of the United Kingdom .
Duchess Louise of Mecklenburg-Strelitz (Luise Auguste Wilhelmine Amalie; 10 March 1776 – 19 July 1810) was Queen of Prussia as the wife of King Frederick William III. The couple's happy, though short-lived, marriage produced nine children, including the future monarchs Frederick William IV of Prussia and Wilhelm I, German Emperor .
Duchess Frederica of Mecklenburg-Strelitz: 2. Ernest Augustus, Crown Prince of Hanover: 10. Joseph, Duke of Saxe-Altenburg: 5. Princess Marie of Saxe-Altenburg: 11. Duchess Amelia of Württemberg: 1. Ernest Augustus, Duke of Brunswick: 12. Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg: 6. Christian IX of Denmark: 13.
By marriage. The wife of a British prince becomes a British princess, but she cannot use the princess title before her own given name. She can use the princess title with her husband's given name (e.g. Princess Michael of Kent), while the wife of the Prince of Wales is styled as the Princess of Wales (e.g. Catherine, Princess of Wales).
Frederica became Hereditary Princess of Greece, her husband being heir presumptive to his childless elder brother, King George II. During the early part of their marriage, they resided at a villa in Psychiko in the suburbs of Athens. Ten months after their marriage, their first child, the future Queen Sofia of Spain, was born on 2 November 1938.
Life in Russia. He was born in Oranienbaum, Russia, a grandson of Grand Duke Georg of Mecklenburg-Strelitz via his second son Duke Georg August of Mecklenburg (1824–1876) and his wife Grand Duchess Catherine Mikhailovna of Russia, a granddaughter of Emperor Paul I of Russia.