Premiere performance of George Frideric Handel's Ariodante at the Royal Opera House, Covent Garden.

Ariodante (HWV 33) is an opera seria in three acts by George Frideric Handel. The anonymous Italian libretto was based on a work by Antonio Salvi, which in turn was adapted from Canti 4, 5 and 6 of Ludovico Ariosto's Orlando Furioso. Each act contains opportunities for dance, originally composed for dancer Marie Sall and her company.

The opera was first performed in the Covent Garden Theatre, London, on 8 January 1735. Ariodante opened Handel's first season at Covent Garden and successfully competed against the rival Opera of the Nobility, supported by the Prince of Wales. Handel had the tacit and financial support of the King and Queen and, more vocally, of the Princess Royal. The opera received 11 performances during its premiere season at Covent Garden.Like Handel's other works in the opera seria genre, Ariodante, despite its initial success, fell into oblivion for nearly two hundred years. An edition of the score was published in the early 1960s, from the Hallische Hndel-Ausgabe. In the 1970s, the work began to be revived, and has come to be considered one of Handel's finest operas. On 29 March 1971, the Handel Society of New York performed the American premiere of the work in a concert version with mezzo-soprano Sophia Steffan in the title role and Judith Raskin as Ginevra.Charles Cudworth has discussed the influence of French dance music in the opera. Winton Dean has noted that Act 2 of the opera, in its original version, is the only act in a Handel opera which ends with accompanied recitative.

George Frideric (or Frederick) Handel (; baptised Georg Friederich Händel, German: [ˈɡeːɔʁk ˈfʁiːdʁɪç ˈhɛndl̩] (listen); 23 February 1685 – 14 April 1759) was a German-British Baroque composer well known for his operas, oratorios, anthems, concerti grossi, and organ concertos. Handel received his training in Halle and worked as a composer in Hamburg and Italy before settling in London in 1712, where he spent the bulk of his career and became a naturalised British subject in 1727. He was strongly influenced both by the middle-German polyphonic choral tradition and by composers of the Italian Baroque. In turn, Handel's music forms one of the peaks of the "high baroque" style, bringing Italian opera to its highest development, creating the genres of English oratorio and organ concerto, and introducing a new style into English church music. He is consistently recognized as one of the greatest composers of his age.Handel started three commercial opera companies to supply the English nobility with Italian opera. In 1737, he had a physical breakdown, changed direction creatively, and addressed the middle class and made a transition to English choral works. After his success with Messiah (1742), he never composed an Italian opera again. His orchestral Water Music and Music for the Royal Fireworks remain steadfastly popular. One of his four coronation anthems, Zadok the Priest, has been performed at every British coronation since 1727. Almost blind, he died in 1759, a respected and rich man, and was given a state funeral at Westminster Abbey.

Handel composed more than forty opera serias over a period of more than thirty years. Since the late 1960s, interest in Handel's music has grown. The musicologist Winton Dean wrote that "Handel was not only a great composer; he was a dramatic genius of the first order." His music was admired by Classical-era composers, especially Mozart and Beethoven.