He's probably historically accurate, he is believed to be from Mozambique or Sudan. Yasuke was first mentioned in the text of the Shinchō-ki (信長記) owned by Sonkeikaku Bunko (尊経閣文庫), the archives of the Maeda clan. According to this, the black man named Yasuke (弥助) was given his own residence and a short, ceremonial katana by Nobunaga. Nobunaga also assigned him the duty of weapon bearer, written in 1582 and mostly the chronicles the life of Oda Nobunaga. The compiled chronicle consists of 16 volumes and is considered by historians to be "mostly factual" and "reliable". There are a number of manuscripts with different titles, such as Azuchiki (安土記) and Shinchōki (信長記). The chronicle is not only often quoted on subjects related to Nobunaga, but on other subjects, too, such as the art of tea.......If it makes your feel better, he likely died horribly at Honnō-ji in Kyoto, likely by fire or arrows.