Andrés Marzal de Sas

Andrés Marzal de Sas was a painter of Dutch origin who worked in Valencia, likely originating from Sas van Gent, though some sources suggest a Saxon origin. He collaborated with the Valencian painter Pere Nicolau between 1393 and 1399, contributing to the development of Gothic painting in the Crown of Aragon. His only documented surviving work is a depiction of Doubting Thomas, now held in the museum of Valencia Cathedral.