Uesugi Tomosada (ä¸ÂæÂÂæÂÂå®Â; 1525 â 1546), also known as à Âgigayatsu Tomosada (æÂÂã¶谷æÂÂå®Â), was a samurai commander of the à Âgigayatsu branch of the Uesugi clan around the middle of Japan's Sengoku period.
The eldest legitimate son of Uesugi Tomooki of à Âgigayatsu, following his father's death in 1537, though he was still a child, Tomosada led an attack on the Later Hà Âjà  clan in the Tachibana district of Musashi province. He established himself in the temple of Kandai-ji, which he fortified as a castle. However, Hà Âjà  Ujitsuna took Kawagoe castle soon afterwards from Tomosada's uncle, Uesugi Tomonari.
Later, in the 1545 at battle of Kawagoe, Tomosada allied itself with Ashikaga Haruuji and Uesugi Norimasa of Yamauchi against Hà Âjà  Ujiyasu. He was killed in battle, and the attempt to regain the castle for the Uesugi was ultimately unsuccessful.
With Tomosada's death, the à Âgigayatsu branch came to an end.