Neutron tomography and neutron diffraction are ideal to study technical and art-historical aspects of Renaisaance bronze casting in a complety non-destructive way. A series of bronze objects from the Rijksmuseum Amsterdam have been surveyed by neutron tomography at PSI, Villingen. We wish to study some of the bronze statues by neutron diffraction, in order to determine alloy compositions and alloy variations of internal components. The characterization of the copper alloys is necessary to address questions of technological choices, of standardization of the alloy and of the production techniques. A second key aim of the experiments on ENGIN-X is to establish a new instrument control concept: tomography-driven diffraction.