Benedict, who was the first pontiff in almost 600 years to resign his position, rather than hold office for life, passed away on December 31 at a monastery in Vatican City, according to a statement from the Vatican.
He was elected Pope in April 2005, following John Paul II’s death.
The former Pope’s body was moved from the monastery to St. Peter’s Basilica on Monday morning, where it was laid out for the faithful to bid farewell, the Vatican said. Nearly 40,000 people have paid homage to former pontiff as of 2 p.m. local time (8 a.m. ET) Monday, according to Vatican police.
Italian Prime Minister Giorgia Meloni and President Sergio Mattarella were among those to pay their respects as Benedict lay in state.
Mourners waiting in line in St. Peter’s Square told CNN they wanted to pay tribute to the former Pope.
“We’re just here to pray, to give thanks to God for the life of Pope Benedict,” said Paul, a student from Scotland.
“Apart from his theology, which was very important for the Church, I think all the time that he spent in his retirement praying for the Church has been a very big testimony for all of us.”
Benedict’s funeral will be held at 9:30 a.m. local time on Thursday in St. Peter’s Square in Vatican City, according to the director of the press office of the Holy See, Matteo Bruni. The funeral will be led by Pope Francis. In line with Benedict’s wishes, his funeral will be “simple,” Bruni said.
Francis paid tribute to his predecessor while leading the Angelus prayer on Sunday.
“In particular, this salute is to the Pope Emeritus Benedict XVI, who yesterday morning passed away. We salute him as a faithful servant of the gospel,” he said.
Benedict was known to be more conservative than his successor, Pope Francis, who has made moves to soften the Vatican’s position on abortion and homosexuality, as well as doing more to deal with the sexual abuse crisis that has engulfed the church in recent years and clouded Benedict’s legacy.
He stunned the Catholic faithful and religious experts around the world in 2013 when he announced plans to step down from his position as Pope, citing his “advanced age.”
In his farewell address, the outgoing Pope promised to stay “hidden” from the world, but he continued to speak out on religious matters in the years following his retirement, contributing to tensions within the Catholic Church.
His death prompted tributes from political and religious leaders including US President Joe Biden, British Prime Minister Rishi Sunak and the Dalai Lama.
CNN’s Delia Gallagher and Valentina di Donato reported from Rome. CNN’s Frederik Pleitgen, Allegra Goodwin, Sharon Braithwaite and James Frater contributed reporting.