Mauretania
When they moved to Mauretania, they renamed their new capital to Caesaria (modern Cherchell, Algeria). The city was named in honor of Augustus. The construction and sculpture projects at Caesaria and another city Volubilis, display a rich mixture of Egyptian, Greek and Roman architectural styles.
Cleopatra is said to have exerted considerable influence on Juba II's policies. Juba II encouraged and supported the performing arts, research of the sciences and research of natural history. Juba II also supported Mauretanian trade. The Kingdom of Mauretania was of great importance to the Roman Empire. Mauretania traded all over the Mediterranean, particularly with Spain and Italy. Mauretania exported fish, grapes, pearls, figs, grain, wooden furniture and purple dye harvested from certain shellfish, which was used in the manufacture of purple stripes for senatorial robes. Juba II sent a contingent to Iles Purpuraires to re-establish the ancient Phoenician dye manufacturing process. Tingis (modern Tangier), a town at the Pillars of Hercules (modern Strait of Gibraltar) became a major trade centre. In Gades, (modern Cádiz) and Carthago Nova (modern Cartagena) Spain, Juba II was appointed by Augustus as an honorary Duovir. A Duovir was a chief magistrate of a Roman colony or town, most probably involving with trade and was also a Patronus Colonaie.
The value and quality of Mauretanian coins became distinguished. The Greek historian Plutarch describes him as 'one of the most gifted rulers of his time'. Between 2 BC – AD 2, he travelled with Gaius Caesar (a grandson of Augustus), as a member of his advisory staff to the troubled Eastern Mediterranean. In 21, Juba II made his son Ptolemy co-ruler and Juba II died in 23. Juba II was buried alongside his first wife in the Royal Mausoleum of Mauretania. Ptolemy then became the sole ruler of Mauretania.
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