Archaeological study reconstructs the history of the cemetery as being that of an institution. During the first phase in the 9th-10'h centuries, an area of burial was succeeded by a regular cemetery arranged in rows in the foreground of a chapel, to be followed by a church cemetery towards the year 1000. In the second phase of the 11 th-13th centuries, the parish church was built in the cemetery at the end of the 11th century ; in the second half of the 12th century the cemetery and church were extended towards the east ; and to this were now added the functions of a central square of the new town and a marketplace as parts of a programme of urbanisation. In the third phase of the 14th-16th centuries, the competition between institutions br...