The present work intends to represent a further step in the knowledge of ancient
stone masonry walls through an experimental approach, from which only few information is
available. The main results of an experimental program based on in-plane static cyclic tests
conduct on masonry wall panels with distinct masonry bond are presented. It is also revealed
that simplified models, often used to predict the lateral shear strength of brick masonry walls
submitted to static in-plane lateral loading, are also valid for stone masonry walls. Besides, the
prediction of the lateral strength by means of a novel equilibrium model is also pointed out
