Gilbert Hay, or perhaps "Sir Gilbert the Hay", who may have been a different person; last mentioned this year (died 1455), Scottish poet and translator
1404:
Leon Battista Alberti (born 1472), Italian author, artist, architect, poet, priest, linguist, philosopher, and cryptographer
Annamacharya (died 1503), mystic saint composer of the 15th century, widely regarded as the Telugu "pada kavita pitaamaha" (grand old man of simple poetry); husband of Tallapaka Tirumalamma
Chandidas (died unknown), refers to (possibly more than one) medieval poet of Bengal
1409:
Liu Jue (died 1472), Chinese landscape painter, calligrapher, and poet