Her research on Bosnia and Herzegovina in medieval times led to her collaboration with Alojz Benac, then director of the National Museum of Bosnia and Herzegovina, as well as other renowned names in the field, including Vlajko Palavestra, Đuro Basler, Šefik Bešlagić, Nada Miletić, Pavao Anđelic, Marko Vego. Wenzel spent the early 1960s travelling throughout the country, documenting the motifs on the stećaks, resulting in her 1965 publication Ornamental Tombstones In Mediaeval Bosnia And Surrounding Regions. Her research also challenged the contemporary view that the Bosnian Church was adherent to Bogumilism, and she furthermore espoused the view that stećaks were the material culture of followers of the Catholic, Orthodox and Bosnian Churches within the region. She also argued that the Vlachs were the creators of the stecci. Her primary focus of research then switched to metalworking, a craft from which she believed many of the recurring motifs apparent on stećak tombstones was derived, coining the term ‘Bosnian Style’, for a style of metal ornamentation incorporating a mixture of Gothic, Mediterranean-Islamic and Byzantine. During the War in Bosnia and Herzegovina, Wenzel founded the charity Bosnia-Herzegovina Heritage Rescue which functioned until 2004, and visited the country on several occasions in the midst of hostilities.
Painting
Marian painted for most of her life, producing canvases of a style unusual for her generation. Rejecting the Abstract Expressionism then dominating the American and European art scene she used her knowledge of Ancient Greece, of Rome and of Byzantium to create work that focussed on the magical and mysterious world of classical religion and culture: Cretan bull-dancers in oil, five feet high, tangling with Mercury and enlivened by splashes of real gold; Roman beauties with the wistful expressions of their originals at Pompeii again peering through gold leaf; goddesses with added Renaissance glass appliqué. This is painting of a high intellectual and historical order that is accessible without in any way being obvious. Marian's spiritual, mystical and even magical beliefs come out in her canvases and can be related to her Automatic Writing and her belief in reincarnation.
Writings
Besides the academic publications listed under 'Research' above, Marian was a poet and a writer and illustrator of short stories. The best of these are channeled material she received in the shape of children's' stories from the Egyptian god Alperas, son of Anubis The illustrations in these volume were produced automatically; Marian could talk about something else while letting her pen create drawings of which she had no conscious awareness.
Death and legacy
Marian Wenzel died from cancer in 2002 at the age of 69. Throughout her lifetime, she published over 30 essays on the cultural heritage of Bosnia and Herzegovina, as well as other titles of topics in the field of culture and art. After her death she bequeathed her personal archives to the History Museum of Bosnia and Herzegovina, and her artworks to the National Gallery of Bosnia and Herzegovina. A retrospective exhibition of her life and work was hosted by the History Museum of Bosnia and Herzegovina in 2010, following on from a previous exhibition of her artworks in 1998.
