User blog comment:Essie Essex/Arkane Studios Announces Dishonored 2/@comment-1500935-20150615102850

A wild guess, that Duke of Serkonos in the video is Luca Abele. Firstly, because the Duke who offered Corvo as a political gift would be much older. Secondly, because why would that son be named in the archives while not even mentioned in-game, when his brother (killed by Billie) still has no first name?