Ducatus Troppaviensis (Blaeu 1645 - Silesia Ducatus)

Cropped map "silesia ducatus" (duchy of silesia) from "theatrum orbis terrarum, sive atlas novus in quo tabulæ et descriptiones omnium regionum, editæ a guiljel et ioanne blaeu" (theater of the world, or a new atlas of maps and representations of all regions, edited by willem and joan blaeu), 1645, to include only the ducatus troppaviensis (duchy of troppau).