 The 11th-century "Suda" lexicon states that Galen died at the age of 70, which would place his death in about the year 199.However, there is a reference in Galen's treatise ""On Theriac to Piso"" (which may, however, be spurious) to events of 204.There are also statements in Arabic sources that he died in Sicily at age 87, after 17 years studying medicine and 70 practicing it, which would mean he died about 217.