Gustav III of Sweden

Gustav III was King of Sweden from 1771 until his assassination in 1792. He was the eldest son of King Adolph Frederick and Queen Louise Ulrika, who was a sister of Frederick the Great, King of Prussia.

Gustav was born in Stockholm, under the tutelage of Hedvig Elisabet Strmfelt until the age of five, and was thereafter educated under the care of two governors who were amongst the most eminent Swedish statesmen of the day, Carl Gustaf Tessin and Carl Fredrik Scheffer but he owed most perhaps to the poet and historian Olof von Dalin.

Source: Wikipedia