At a high point of his popularity monuments were built to honour Macrinus, including the grand tetrastyle Capitoline Temple, in Volubilis was erected in 217 AD.
It remained loyal to Rome despite a revolt in 40–44 AD led by one of Ptolemy's freedmen, Aedemon, and its inhabitants were rewarded with grants of citizenship and a ten-year exemption from taxes.
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From 2000 excavations carried out by University College London and the Moroccan Institut National des Sciences de l'Archéologie et du Patrimoine under the direction of Elizabeth Fentress, Gaetano Palumbo and Hassan Limane revealed what should probably be interpreted as the headquarters of Idris I just below the walls of the Roman town to the west of the ancient city centre.
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Moulay Idriss established the eponymous town of Moulay Idriss Zerhoun on a nearby hillside in 789 but was assassinated in Volubilis in 791 on the orders of the caliph of Baghdad, Harun al-Rashid.
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The American writer Edith Wharton visited in 1920 and highlighted what she saw as the contrast between "two dominations looking at each other across the valley", the ruins of Volubilis and "the conical white town of Moulay Idriss, the Sacred City of Morocco".
In the south of Mauritania Tingitana Romans made a limes in the third century, just north of the area of actual Casablanca near Sala and stretching to Volubilis.
Slightly to the south of Sidi Kacem, in antiquity, Volubilis was an important Roman town near the westernmost border of the Roman Empire.