Short answers, pulled from the story.
Clodius Albinus was a Roman general born around 150 CE in Hadrumetum, in the province of Africa. He was proclaimed emperor by the legions in Britain and Gaul in 193 CE, during the Year of the Five Emperors, after the assassination of Pertinax left the throne contested by multiple military commanders.
Albinus and Severus were initially allies. Albinus accepted the title of Caesar from Severus and added the name Septimius to his own; the two shared a consulship in 194 CE. After Severus eliminated his eastern rival Pescennius Niger, he turned against Albinus, had the Senate declare him a public enemy, and defeated him at the Battle of Lugdunum on the 19th of February 197.
Albinus died on the 19th of February 197 at the Battle of Lugdunum in Gaul. Ancient sources disagree on whether he killed himself after defeat or was captured and executed on Severus' orders. Severus had his body humiliated, his family killed, and his severed head sent to Rome as a warning.
Marcus Aurelius wrote two letters praising Albinus for his role in suppressing the 175 CE rebellion of Avidius Cassius. The emperor credited Albinus with preventing the legions in Bithynia from defecting to the rebel, and praised his military experience and gravity of character.
Severus initially pardoned Albinus' wife and two sons, then reversed that decision almost immediately. They were executed at the same time Albinus' corpse was beheaded, and his headless body was thrown into the Rhône together with the bodies of his murdered family.
Ancient sources attribute two works to Albinus: a treatise on agriculture and a collection of Milesian tales, a genre of short comic fiction popular in the Roman world. Neither work has survived.