ollanius persson

Ollanius Pius was born as one of the mysterious Perpetuals and has lived so many lives that he has forgotten his true age. However, he estimates that as of the Horus Heresy, he was roughly 45,000 years old "give or take", which would place his birth around 15,000 B.C. in the city of Nineveh.

If this is to be believed, it would make him even older than the Emperor, who, according to older sources, was born around 8,000 B.C..

Having lived through all of recorded human history, he makes first-hand reference to historical and mythological events such as the being one of the Argonauts, participating in the Battle of Austerlitz (during the Napoleonic Wars), the Siege of Verdun (during the First World War), and the Battle of 73 Easting (during the Gulf War), amongst others. During his long life, he even acted as the Emperor's original Warmaster on prehistoric Earth.

During the Horus Heresy, he became involved in the battle against Horus following the Battle of Calth and worked with John Grammaticus to reach Terra.