Designer is a vague term which usually implies the task of creating or of being creative in a particular area of expertise. Often times it is used to reference someone who draws or in some ways uses visual cues to organize their work.
... at Kempen[?], Germany (40 miles northwest of Cologne) in 1380 and died near Zwolle (52 miles east-north-east of Amsterdam) in 1471. His paternal name was Hemerken or ...