"Marcus Annius Verus Caesar (born 162 or 163 AD) was the 12th of 13 children of Roman Emperor Marcus Aurelius and Empress Faustina the Younger. Annius ...
was made caesar on 12 October 166 AD, alongside his brother Commodus, designating them co-heirs of the Roman Empire. Annius died on 10 September 169, at age seven, due to complications from a surgery to remove a tumor from under his ear. His death left Commodus as the sole heir." - (en.wikipedia.org 31.01.2020)
