Polonius was the first Duke of Lumbridge. It is believed that he lived circa the year 1937 of the Fourth Age, as this was the date of the creation of Lumbridge. Polonius was given the land by King Claudius, the King of Misthalin at the time, and is a direct male ancestor of Duke Horacio, the present Duke.
Polonius also built Lumbridge Castle in the place of a wooden fort that had stood as a temporary fortress.
||Duke of Lumbridge
||Unknown (eventually Duke Horacio)