 Not long after, Ruysch went to work at the Portuguese court as cartographer and astronomer, presumably by recommendation of Julius II who was friends with Manuel I of Portugal.Later, he returned to the St. Martin monastery, suffering from consumption, but able to create a, now lost, astronomical wall painting illustrating the days, months (phases of the Moon), and constellations.He is said to have died at considerable age in 1533 at the monastery, where he had a room adjacent to the library.