The Trio No. 1 in B-flat major for piano, violin, and cello, D. 898, was written by Franz Schubert in 1827. The composer finished the work in 1828, in the last year of his life. It was published in 1836 as Opus 99, eight years after the composer's death. Like the E-flat major trio, it is an unusually large scale work for piano trio, taking around 40 minutes in total to perform.

Franz Peter Schubert was an Austrian composer of the late Classical and early Romantic eras. Despite his short life, Schubert left behind a vast oeuvre, including more than 600 secular vocal works, seven complete symphonies, sacred music, operas, incidental music, and a large body of piano and chamber music. His major works include the art songs "Erlkönig", "Gretchen am Spinnrade", "Ave Maria"; the Trout Quintet, the unfinished Symphony No. 8 in B minor, the "Great" Symphony No. 9 in C major, the String Quartet No. 14 Death and the Maiden, a String Quintet, the two sets of Impromptus for solo piano, the three last piano sonatas, the Fantasia in F minor for piano four hands, the opera Fierrabras, the incidental music to the play Rosamunde, and the song cycles Die schöne Müllerin, Winterreise and Schwanengesang.