ROME — Pope Francis on Saturday comforted the sister of an elderly French priest who was slain by Islamic militants in a church in Normandy as the pontiff paid tribute with a special prayer service to the courage of 20th- and 21st- century Christian martyrs.

Francis gripped the hands of Roselyne Hamel, whose brother, Rev. Jacques Hamel, 85, died when his throat was slit as he celebrated Mass on July 26, 2016.

He quietly spoke with her during the evening service in St. Bartholomew Basilica on Tiberina Island in Rome. He had just heard her tell fellow faithful in the church that her brother was killed by “two youths radicalized by a discourse of hate.”

Francis said the legacy of modern-day martyrs “teaches us that with the strength of love, meekness, one can combat arrogance, violence, war, and with patience, achieve peace.”

Next week Francis makes a two-trip pilgrimage to Egypt, a predominantly Muslim Arab nation where on April 9, on the Christian holy day of Palm Sunday, twin suicide bombings of Coptic churches killed 44 people.

Saturday, Francis prayed that “persecuted Christians are protected and that peace soon comes to the world.”

Departing from his prepared homily, Francis recounted how he was touched when last year, during a visit to a migrant detention facility in Lesbos, Greece, a Muslim father of three told him that his Christian wife had her throat slit when ‘terrorists came … and asked what our religion was.'”

“She is looking down at us from heaven,” the pope added.

Francis took some of the Lesbos refugees with him aboard his plane back to Italy.

Saturday, Francis also hailed the suffering of refugees in detention facilities, lamenting that “international accords seem more important than human rights.”

He praised Italians and Greeks for welcoming tens of thousands of refugees.

During the service, the names of some of those who died for their faith were read aloud. They included the Rev. Giuseppe Puglisi, who spoke out against the Sicilian Mafia and was slain by hit men in Palermoy in 1993.

Among those who received tributes was Paul Schneider, a Reformed Church pastor killed in the Buchenwald concentration camp in 1939.

The pastor’s son, Karl A. Schneider, spoke Saturday, saying his father was killed because he wanted to ensure “the German people kept a Christian orientation in the state and society.”