Response spectrum modal analysis of the Auguste-Victoria Church of the Ascension on the Mount of Olives in Jerusalem has been conducted in order to study its capability to withstand seismic loads safely. For this purpose a Finite Element Program has been employed and the structure has been analysed as a space frame consisting of horizontal and vertical beams and diagonal struts and ties. At each node lumped masses have been specified corresponding to the free translational degrees of freedom. This simulation model has been verified in the case of a simpler structure, the church belfry and proved to be very reliable.