"As a patriot and a soldier, he was the ideal, apolitical candidate for the position of interrex. These same traits, however, meant that he lacked the support of powerful nobles and thus could not speak with a united voice for Temeria as a whole."
- - Dandelion on Natalis, The Witcher 2: Assassins of Kings
Interrex is a title of a short-term regent in Temeria, reigning after an unexpected death of monarch until his successor is chosen. The title's holder has to be strong and firm to ensure stability in the capital, Vizima, and beyond.
After the death of King Foltest at La Valette Castle, Constable Jan Natalis served approximately one year in this position, though he lacked the support of powerful nobles and thus could not speak for the whole of his country at the summit of Loc Muinne.