To this end , he ordered the construction of some shipyard in Seville :
This motivated Caliph Abd ar - Rahman II to reinforce the wall of Isbylia ( Seville ) ( of Roman origin ) and to create a permanent war fleet .
To this end , Caliph ordered the construction of some shipyard in Seville :
This motivated Caliph Abd ar - Rahman II to reinforce the wall of Isbylia ( Seville ) ( of Roman origin ) and to create a permanent war fleet .