Bálint Bakfark (Hungarian: [ˈbaːlint ˈbɒkfɒrk]; in contemporary sources Valentin Bakfark or (from 1565 onward) Valentin Greff alias Bakfark, his name is variously spelled as Bacfarc, Bakfarc, Bakfarkh, Bakffark, Backuart) (1526–30 – 15 or 22 August 1576) was a Hungarian composer of Transylvanian Saxon origin, and lutenist of the Renaissance. He was enormously influential as a lutenist in his time, and renowned as a virtuoso on the instrument.
He was born in Brassó, Transylvania, Kingdom of Hungary (today Brașov in Romania), into a family of Saxon origin. An orphan, he was brought up by the Greff family and was educated in Buda at the court of John Zápolya. Bakfark remained there until 1540, though he possibly traveled to Italy once during this time.
Sometime in the 1540s he traveled to Paris, but, finding the position of lutenist to the king filled, he left for Jagiellon Poland in 1549, where he was employed as a court lutenist by Sigismund II Augustus. From then until 1566, he traveled extensively around Europe, with his renown increasing, but remained faithful to his employer in spite of numerous efforts by other monarchs to win him away; the riches bestowed on him by Sigismund may have affected his decision to remain attached to the court in Vilnius (Wilno).
What happened to him in 1566 is not precisely known, but he clearly did something to provoke the wrath of the king, and scarcely had time to flee before Polish army troops ransacked his house and destroyed his possessions. After this, he lived for a while in Vienna and then returned to Transylvania, but not for long; in 1571 he moved to Padua in Italy, where he remained until his death during the plague of 1576.