In the agony of the Umayyad dynasty in 
Spain, two princes of the house were proclaimed caliphs for a very short time, 
Abd-ar-rahman IV Mortada (
1017), and 
Abd-ar-rahman V Mostadir (
1023-
1024).  Both were the mere puppets of factions, who deserted them at once.  Abd-ar-rahman IV was murdered in the year in which he was proclaimed, at 
Guadiz[?], when fleeing from a battle in which he had been deserted by his supporters.  Abd-ar-rahman V was proclaimed caliph in December 
1023 at 
Cordova, and murdered in January 
1024 by a mob of unemployed workmen, headed by one of his own cousins. 
 
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