Use the Manuscript Miniatures site to search for wolkenband. That gives everything. Then limit dates and locations.
Various approaches and attempts at some more-or-less nebuly line patterns are found before 1400, England, France, Germany, but not Italy. After 1400 Pizan is dominant till c. 1415. So, Paris is a connection with the cosmic illustrations. After that, it's Munich, Alsace, and Hagenau, and a possible Lauber connection.
Various approaches and attempts at some more-or-less nebuly line patterns are found before 1400, England, France, Germany, but not Italy. After 1400 Pizan is dominant till c. 1415. So, Paris is a connection with the cosmic illustrations. After that, it's Munich, Alsace, and Hagenau, and a possible Lauber connection.