Badajoz, which forms a Eurocity with Elvas together with Campomayor -port. Campo Maior-, and without Olivenza, does not have a clear original name either. Various hypotheses have been put forward, such as the ar. balad al-lawz ‘city of almonds’, although it may be an earlier name. The city was founded in 875 by Ibn Marwan on the site of a Visigothic settlement. A mistaken identification with Pax Augusta led to the adoption of the gentilicio pacense, which has been sanctioned by usage.