Nikolaus Harnoncourt (Count Nikolaus de la Fontaine und d'Harnoncourt-Unverzagt) (born 6 December 1929) is an Austrian conductor, particularly known for his historically informed performances of music from the Classical era and earlier. Starting out as a classical cellist, he founded his own period instrument ensemble in the 1950s, and became a pioneer of the Early Music movement. Around 1970, Harnoncourt started to conduct opera and concert performances, soon leading renowned international symphony orchestras, and appearing at leading concert halls, operatic venues and festivals. His repertoire has since widened to include composers of the 19th and 20th century. In 2001 and 2003, he conducted the Vienna New Year's Concert. Harnoncourt is also the author of several books, mostly on questions of performance history and musical aesthetics.

Harnoncourt was born in Berlin, Germany. He was raised in Graz, Austria and studied music in Vienna. His mother, Ladislaja Gräfin von Meran, Freiin von Brandhoven, was the granddaughter of the Habsburg Archduke Johann, the 13th child of the Emperor Leopold II. He is thus descended from various Holy Roman Emperors and other European royalty. His father, Eberhard de la Fontaine Graf d'Harnoncourt-Unverzagt, was an engineer working in Berlin who had two children from a previous marriage. Two years after Nikolaus's birth, his brother Philipp was born. The family eventually moved to Graz, where Eberhard had obtained a post in the state-government (Landesregierung) of Styria.

Harnoncourt may refer to:

Harnoncourt (Arnonco) is a commune until 1977 in southern Belgium, now in the Rouvroy. And name of an Austrian noble family originated from that place name.

Coordinates: 49°32′02″N 5°30′00″E / 49.534°N 5.500°E / 49.534; 5.500

Cecilia Bartoli, Cavaliere OMRI (Italian pronunciation: [tʃeˈtʃiːlja ˈbaɾtoli]; born June 4, 1966 in Rome) is an Italian coloratura mezzo-soprano opera singer and recitalist. She is best known for her interpretation of the music of Mozart and Rossini, as well as for her performances of lesser-known Baroque and classical music. She is known for having the versatility to play both soprano and mezzo roles.

Bartoli is considered a coloratura mezzo-soprano (Koloratur-Mezzosopran) with an unusual timbre. She is one of the most popular (and one of the top-selling) opera singers of recent years. Bartoli is much liked by the concert-going public for her vivacious on-stage persona,^{[citation needed]} while her lyric voice and investigations of Baroque music have given her considerable recognition even among the non-opera-going public.^{[citation needed]}

Bartoli's parents, Silvana Bazzoni and Pietro Angelo Bartoli, were both professional singers and gave her her first music lessons. Her first public performance was at age eight as the shepherd boy in Tosca. Bartoli later studied at the Conservatorio di Santa Cecilia in Rome.