How many Trumpet Concertos did Haydn Write?

Joseph Haydn wrote two Trumpet concertos: the Concerto in C major, Hob. VIIe:1, composed in 1796, and the Concerto in D major, which is sometimes attributed to him but is actually a work by his contemporaries. The C major concerto is well-known and frequently performed, showcasing the trumpet's capabilities in a classical setting. Haydn's contributions to the trumpet repertoire significantly influenced its development in the Classical Music tradition.