"Caracalla (/ˌkærəˈkælə/ KARR-ə-KAL-ə; Latin: Marcus Aurelius Severus Antoninus Augustus; 4 April 188 – 8 April 217), formally known as Antoninus (Ancient Greek: Ἀντωνῖνος), ruled as Roman emperor ...
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from 198 to 217 AD. He was a member of the Severan dynasty, the elder son of Septimius Severus and Julia Domna. Co-ruler with his father from 198, he continued to rule with his brother Geta, emperor from 209, after their father´s death in 211. He had his brother killed later that year, and reigned afterwards as sole ruler of the Roman Empire. Caracalla´s reign featured domestic instability and external invasions by the Germanic peoples." - (en.wikipedia.org 23.11.2019)