Romanian-Hungarian painter, Weith László emerged from the artistic milieu of Baia Mare, one of the most significant centers of plein-air painting in Central Europe at the turn of the twentieth century. He trained at the Free Painting School of Baia Mare under Thorma János, Krizsán János, Mikola András, and Ziffer Sándor — masters who shaped the school's post-Impressionist and naturalist orientation — and later completed his formal education at the Faculty of Fine Arts in Budapest (1928–1932).

His practice developed in close dialogue with the Baia Mare colony tradition, participating in six consecutive creative colonies between 1927 and 1939 and exhibiting regularly alongside the group. In 1941 he was admitted as a member of the Baia Mare Society of Fine Artists, affirming his sustained institutional presence within the local school.

Working primarily in oil and ink, László engaged with themes rooted in the landscape and built environment of the region. His draftsmanship is evidenced in works such as Colonia Pictorilor, a monochrome ink drawing of the colony's workshop pavilion — later used as historical documentation during the 2015–2017 rehabilitation of the Thorma János Pavilion — which reflects a disciplined, observational approach characteristic of the Baia Mare tradition.

His career unfolded within the broader ideological and institutional shifts affecting Romanian art through the mid-twentieth century, navigating the transition from an independent colony culture to the constraints of Socialist Realism.