Ignace (Ignaz) Joseph Pleyel 18 June 1757 – 14 November 1831) was an Austrian-born French composer and piano builder of the Classical period. Symphony in D major, Ben. 133 Remembered mostly as Haydn's rival during his London journey of 1792, Ignaz Josef Pleyel was the 24th child (out of 38!) of an impoverished schoolteacher. He was admitted to the class of the composer Vanhal and came to the att..