A Sudanese woman, Meriam Ibrahim and her husband Daniel Wani and their two children Martin and Maya meet Pope Francis on Thursday at the Vatican.
Ibrahim was forced to give birth in shackles in prison and sentenced to death for apostasy in May, sparking an international campaign to save her life.
Spared a death sentence for apostasy after an international outcry, the 27-year-old Sudanese woman had been staying at the US embassy in Khartoum with her husband and their two children since being blocked from leaving the country last month.
She fled to Italy on Wednesday morning, where she was expected to spend a few days before heading to the US.
She was accompanied by Italy's Deputy Foreign Affairs Minister, Lapo Pistelli and received at the airport by the Italian prime minister, Matteo Renziw.
The pope thanked Meriam and her family for their courageous demonstration of constancy of faith.