1531 -- "In the year 1531 four comets appeared in the sky opposite one another, such that they could be seen in certain places in the Netherlands, juste as they are painted." -- The Book of Miracles ca 1552
The “Book of Miracles” includes 26 examples of comets, including this one: “In the year 1007 A., a wondrous comet appeared. It gave off fire and flames in all directions. As it fell to Earth it was seen in Germany and Italy.