The Venetian sovereignty in the region of Crete lasted from 1204 until 1669. During that chronological period there was constructed in the island many monuments of fortress, social and religious architecture, with obvious influences by the constructional and decorative styles of West. Many of the buildings of that space of time remain inalterable until today among which a significant number of two-aisle temples of monasteries. This research includes a briefhistorical retrospection and study of social frame which contributed in the configuration of architecture and church design of those years, as well as the evolution of different typologies that we encounter in sacred monuments of the island whichfinally led to the establishment of two-aisle temple as the most used form of religious architecture of the region.

Then by bibliographic research but alsosite observation and recording of the most important two-aisle temples of monasteries in Crete, we attempt to study their architecturalform, their structural characteristics as well as the performance of theirstatic function. The Objective is in the referred historical frame to point out the structural, aesthetic, religious and technological parameters, techniques and methods that characterize the particular type of temples and therefore «responsible» for their architectural value but also for their structural vulnerability, especiallydue to the devastating earthquakes of the island.

Further is analyzed from general view the static model of two-aisled church. This model is constituted from two parallel rail aisles which communicate with each other with a row of columns connected with arcs and are covered with two acute angled domes, one for each aisle. Above them there are two pitched roofs, overlappedwith tiles or ceramic mortar. Also is examined the pathology of this temples concerning their structural system, their building materials, the nature of foundation soil, geologically, and the way that they were forced and are reach to conclusions about the causes of their injuries.