Pope Francis said Donald Trump’s plans to impose mass deportations of immigrants would be a “disgrace,” as he weighed in on the incoming U.S. president’s pledges nearly a decade after calling him “not Christian” for wanting to build a wall along the U.

It’s also a topic which resonates personally with Francis. In his new autobiography, the Pope recalled how his paternal grandparents and father had planned to sail in 1927 on the Principessa Mafalda from Italy to Argentina, which sank with the loss of many lives, but ended up making a later crossing.