This article is from the Prophecies of Nostradamus FAQ, by firstname.lastname@example.org.
I p191 (cVIII-46)
During the period that the Antichrist begins to flex his power, the
current pope will be assassinated when he goes on a trip away from
the Vatican. The two cardinals nearest to the pope will realize the
danger to their church after the death, and they will close
themselves up in the Vatican to try to protect themselves.
The current Pope is desirous of world peace and is working against
some established power parties within the Roman church. A point will
come when the special interests inside the church who want to hold
onto their power and wealth will misadvise the Pope in such a way as
to place him in a dangerous situation which he is unaware of. The
assassination will lead to social unrest and rioting in Rome. The
next pope will not last long. There will be only two other popes
after the present one.
I p192 (cII-97)
The pope and several of his entourage will be assassinated in late
spring when the roses bloom, at a European city that is at the
junction of two major rivers.
I p194 (cII-15)
The present pope will be assassinated shortly prior to the appearance
of a comet that will be clearly visible from the sky of the Northern
Hemisphere. His concern for the human condition, leading him to
treacherous travel arrangements, wil be his downfall. The next pope
will be assassinated by the Antichrist because he won't submit to
his demands. The assassination allows the Antichrist to install his
"tool" into the office.