Pierre-Auguste-Louis Blondeau (15 October 1786 [the given date is often 15 August 1784][1] – 14 April 1863) was a 19th-century French composer, violinist, music theorist and historian.
He won a mention at the Prix de Rome in 1807 and in 1808 was awarded the first Grand Prix of Rome in musical composition with his cantata Marie Stuart.
He composed religious works, including a Te Deum in honour of Napoléon, cantatas, a buffo opera, orchestral works and chamber music.
His three string quartets based on piano sonatas by Beethoven (Nos.
Blondeau also distinguished himself as a music theorist and historian with writings on Benedetto Marcello and Giovanni Pierluigi da Palestrina.