Jacques Rosenbaum-Ehrenbush: A Baltic Visionary of Art Nouveau Jacques Gustav-Adolf Rosenbaum-Ehrenbush, a name perhaps less familiar than some of his contemporaries, nevertheless stands as a pivotal figure in the architectural landscape of Estonia and a master of the Art Nouveau movement. Born in Haapsalu, Estonia, in 1878, into a family steeped in Baltic German heritage – including an architect grandfather – Rosenbaum’s life was ine…