Premise: On one of the seven hills of ancient Rome, the fortress-like Palazzo del Quirinale, once summer residence to popes fleeing the malarial swamps of the Vatican down by the Tiber, housed the new king of Italy after 1870, and since 1947 is the presidential palace.

Hypothesis: The popes had the flee the malarial swamps of the Vatican so they would go to Rome.
Relation: neutral