Greyjan the Sane
Greyjan served as the Time Lord president between the Earth dates 2 September 1752 and 14 September 1752. These days were in fact the eleven non-existent days that had been created from nothing by the change from the Julian to the Gregorian calendar, which Faction Paradox had "purchased" from Earth's governments and used in the creation of their dimension, the Eleven-Day Empire. This made Greyjan especially vulnerable to their machinations. Among other notorious features of his biography, he studied paradoxes and committed suicide.