Question: Ludwig van Beethoven's Cello Sonata No. 3 in A major, Op. 69 was written in 1808, in the same year Beethoven also completed and published his Fifth and Sixth Symphonies, composed and completed in 1808, which was first performed in the Theater an der Wien on which date, in a four-hour concert?
Sentence (from "Cello Sonata No. 3 (Beethoven)"): The sonata was dedicated to Baron Ignaz von Gleichenstein and first performed in March 1809 by cellist Nikolaus Kraft and pianist Dorothea von Ertmann.
Relevant evidence: No