Si, your Suavelency!
This was Santiago Derqui, another short-timer; in the middle of civil unrest he resigned his presidency and went into exile.
You have to wonder if every president began his term thinking “well, this will go well. No exile for me!” only to hit the bricks after 18 months and head into the countryside, muttering. After a while they probably became accustomed to it, and just as Pharaohs began their reign by commissioning their tomb, they probably bought a train ticket out of town and put in the top drawer of the Presidential desk.