Queen Sofía of Spain (Spanish pronunciation: [soˈfi.a], née: Princess Sophia of Greece and Denmark; Spanish: Sofía de Grecia y Dinamarca; Greek: Βασίλισσα Σοφία της Ισπανίας, Vasílissa Sofía tis Ispanías; born 2 November 1938) is the wife of King Juan Carlos I of Spain.

Princess Sophia of Greece and Denmark was born in Psychiko, Athens, Greece on 2 November 1938, the eldest child of the King Paul of Greece (1901–1964) and his wife, Queen Frederika (1917–1981), a former princess of Hanover. Queen Sofia is a member of the Schleswig-Holstein-Sonderburg-Glücksburg dynasty. Her brother is the deposed King Constantine II of Greece and her sister Princess Irene of Greece and Denmark. However, since the abolition of the monarchy, the royal titles are recognized by the Dutch Monarchy and the Danish Royal Family.

Princess Sophia spent some of her childhood in Egypt where she took her early education in El Nasr Girls' College (EGC) in Alexandria, then went to South Africa during her family's exile from Greece during World War II. They returned to Greece in 1946. She finished her education at the prestigious Schloss Salem boarding school in Southern Germany, and then studied childcare, music and archeology in Athens. Sofia also studied at Fitzwilliam College, Cambridge a constituent college of the University of Cambridge. She represented Greece in the 1960s Summer Olympics sailing events .^{[citation needed]}.

Spain (ⁱ/ˈspeɪn/ SPAYN; Spanish: España, pronounced: [esˈpaɲa] ( listen)), officially the Kingdom of Spain (Spanish: Reino de España), is a sovereign state and a member of the European Union located in southwestern Europe on the Iberian Peninsula. Its mainland is bordered to the south and east by the Mediterranean Sea except for a small land boundary with the British Overseas Territory of Gibraltar; to the north and north east by France, Andorra, and the Bay of Biscay; and to the northwest and west by the Atlantic Ocean and Portugal.

Spanish territory also includes the Balearic Islands in the Mediterranean, the Canary Islands in the Atlantic Ocean off the African coast, and two autonomous cities in North Africa, Ceuta and Melilla, that border Morocco. Furthermore, the town of Llívia is a Spanish exclave situated inside French territory. With an area of 504,030 square kilometres (194,610 sq mi), it is the second largest country in Western Europe and the European Union after France, and the fourth largest country in Europe after Russia, Ukraine and France.