Clary Mastenbroek was born in the Netherlands. At the Gerrit Rietveld Academy she studied graphic art and painting. She was teaching several years at Minerva Academy ,Groningen. Mastenbroek made over twenty huge folding screens, book illustrations, portraits and graphic art on commission.
Exhibitions in museums and galleries in the Netherlands, Germany, Sweden, France, London, New York and Ireland, where she lives now for twenty five years with her own museum in a former mill surrounded by beautiful gardens laid out between the ruins of the mill. Her art is in museums and private collections worldwide. Several books about her art have been published.