The 16th-century church, built by Portuguese colonizers along the Kwanza River in Angola, formed part of a fortress complex that served as a staging point in the slave trade. Enslaved Africans were baptized there before being forced to march roughly 145 kilometers to Luanda, where they were shipped to the Americas.

Historians estimate that more than 5 million people departed from Angola, making it the largest single point of origin in the trans-Atlantic slave system.The Vatican’s early directives in the 15th century had authorized the enslavement of non-Christians, providing religious justification that intertwined Catholic expansion with colonial exploitation.

Over time, however, the Muxima site evolved into a major Catholic pilgrimage center after reports of an apparition of the Virgin Mary in the 19th century.Leo’s visit, part of an 11-day pastoral trip, is expected to include a Rosary prayer on the riverside esplanade near the church. While the Vatican has not confirmed whether the pope will directly address slavery, clergy in Angola view the visit as symbolically significant.

Rev. Celestino Epalanga of the Catholic Bishops’ Conference of Angola said the pope’s presence could help reframe the site’s meaning, transforming it from a place associated with suffering into one of spiritual renewal.The visit carries added resonance following revelations about Leo’s background.

The pontiff, born Robert Prevost in the United States, was found by a genealogical study to have Creole heritage, with ancestors in Louisiana identified as both enslaved individuals and slave owners. Historians note that some of the earliest enslaved Africans brought to Louisiana originated from Angola, creating a historical link between the region and the pope’s lineage.

Mariana Candido said the convergence of Leo’s heritage and the symbolic weight of Muxima presents a powerful moment for engagement with African Catholics. She added that the visit reflects an effort to align the Church more closely with local expressions of faith across the continent.

Analysts and clergy say Leo has been actively strengthening ties with Africa, including elevating African figures within the Church hierarchy. Stan Chu Ilo said the pope appears intent on addressing long-standing perceptions that Africa has been marginal within global Catholic leadership.Angola’s historical experience adds further context to the visit.

A former Portuguese colony until 1975, the country endured a prolonged civil war after independence that lasted nearly three decades and resulted in more than half a million deaths. Despite significant natural resources, including oil and diamonds, Angola continues to face challenges related to poverty, inequality and governance.

Opposition lawmaker Olivio Nkilumbo said he hoped the pope would use the visit to advocate for social justice and democratic reform, reflecting broader expectations among some Angolans that the Church can play a role in addressing contemporary political and economic issues.

The Vatican has indicated that themes of Leo’s Africa trip will include the exploitation of resources, corruption and governance, alongside pastoral outreach.

Church officials in Angola say they expect the visit to reinforce the institution’s role in promoting peace, reconciliation and social equity in a country still grappling with the legacies of slavery, colonialism and conflict.

In a social media post, Trump said the pope should “stop catering to the Radical Left,” adding that Leo was “weak on crime” and “terrible for foreign policy.” Speaking to reporters later at Joint Base Andrews after arriving on Air Force One, Trump reiterated his criticism, saying, “I’m not a fan of Pope Leo.”

The remarks followed comments by Pope Leo over the weekend condemning what he described as the “delusion of omnipotence” driving the U.S.-Israel war in Iran, and calling on political leaders to pursue negotiations to end the conflict.

The pope delivered his message during an evening prayer service at St. Peter’s Basilica, coinciding with the start of direct talks between the United States and Iran in Pakistan under a fragile ceasefire arrangement.

While Leo did not explicitly mention Trump or the United States, his remarks were widely interpreted as directed at U.S. leadership, which has defended military actions and emphasized American strategic strength in the region.

The exchange marks a rare public dispute between a U.S. president and a sitting pope, and underscores broader divisions over foreign policy and the role of military force in resolving international conflicts.

The pope, the first from the United States, is scheduled to visit Algeria, Cameroon, Angola and Equatorial Guinea, traveling nearly 18,000 km (11,185 miles) across 11 cities and towns on 18 flights in one of the most complex papal itineraries in decades.

Cardinal Michael Czerny said the trip was intended “to help turn the world’s attention to Africa,” underscoring the Vatican’s focus on a region where Catholic populations are expanding rapidly.

Leo, 70, has made limited overseas visits since his election last May, including trips to Turkiye and Lebanon late last year, and Monaco in March. The current tour marks his most extensive diplomatic and pastoral journey to date.

The visit will include a stop in Algeria, an overwhelmingly Muslim country with fewer than 10,000 Catholics among a population of around 48 million, marking the first time a sitting pope has visited the country.

Leo is expected to address political leaders there and visit the Great Mosque of Algiers, only his second visit to a mosque as pope.Across the four countries, Leo is scheduled to deliver 25 speeches addressing a range of issues including resource exploitation, interfaith dialogue and political governance, according to Vatican spokesperson Matteo Bruni.

Cameroon and Equatorial Guinea have long-serving leaders who have faced allegations of human rights abuses, which they deny.The largest gathering of the tour is expected in Cameroon’s coastal city of Douala, where Vatican officials estimate around 600,000 people could attend a papal Mass on Friday.

The trip is the 24th papal visit to Africa since the late 1960s and reflects the continent’s growing significance within the global Catholic Church, with more than 20 percent of adherents now based there.

Speaking at St. Peter’s Square after his Regina Coeli prayer, the pontiff said he felt “closer than ever” to Lebanon amid escalating violence, describing a moral obligation under international law to shield civilians from the effects of war.“

The principle of humanity entails the moral obligation to protect the civilian population from the atrocious effects of war,” he said, addressing crowds gathered at the Vatican.

Lebanon has been drawn into the regional conflict since last month, as Israel intensified strikes against Hezbollah, with Lebanese authorities reporting more than 2,000 people killed.

Without naming specific countries, the pope urged warring sides to seek a peaceful resolution, reiterating calls for dialogue and mediation over continued military escalation.

His remarks followed the failure of recent talks between the United States and Iran in Pakistan to reach an agreement aimed at ending the broader conflict.

On Saturday, the pope delivered one of his strongest appeals yet against the war, calling on leaders to halt hostilities and return to negotiations. “Stop! It is time for peace!” he said, criticizing what he described as a growing reliance on rearmament and displays of power.

The 70-year-old pontiff, who leads the world’s 1.4 billion Catholics, has repeatedly called for de-escalation and a diplomatic solution to the conflict.

He is scheduled to travel to Algeria on Monday for an 11-day visit focused on interfaith dialogue and strengthening ties with the Islamic world.

Vatican officials said the trip is intended to engage with the Islamic world and address broader challenges of coexistence amid global tensions.The Algeria leg will be the first stop in a wider travel that includes Cameroon, Angola and Equatorial Guinea, covering approximately 18,000 kilometers between April 13 and 23.

During his visit to Algiers, Pope Leo XIV is scheduled to meet President Abdelmadjid Tebboune and address government officials and diplomats. He will also visit the Great Mosque of Algiers and meet members of the Catholic community, while holding private prayers for clergy killed during Algeria’s civil war in the 1990s.

A key moment of the trip will come in Annaba, historically associated with Saint Augustine, whose legacy has influenced the pope’s spiritual outlook. Leo, formerly Robert Francis Prevost and a member of the Augustinian order, has often described himself as a “son” of Augustine.

The visit comes as rights groups, including Human Rights Watch, EuroMed Rights and MENA Rights Group, have urged the Vatican to address concerns over restrictions on religious minorities in Algeria.

Algerian officials and local media have highlighted the symbolic significance of the visit, describing it as a reflection of the country’s stability and its role in fostering dialogue on the global stage.

The trip unfolds against the backdrop of ongoing conflict in the Middle East, with the Vatican emphasizing a message centered on interfaith understanding and peaceful coexistence.

The 10-day visit will take Leo nearly 18,000 km across 11 cities in Algeria, Cameroon, Angola and Equatorial Guinea, involving 18 flights in what Vatican officials described as a demanding itinerary.

Cardinal Michael Czerny, a senior Vatican official, said the trip was intended “to help turn the world’s attention to Africa,” emphasizing the pope’s priority to ensure the continent is not overlooked amid global crises.

Leo, the first U.S.-born pope and successor to Pope Francis, has made limited foreign visits since his election last May, including trips to Turkey and Lebanon late last year, and Monaco in March.

Africa accounts for more than 20% of the world’s Catholics, according to Vatican data, and is the fastest-growing region for the Church. In several of the countries on Leo’s itinerary, Catholics make up a majority of the population, while Algeria remains predominantly Muslim with a small Catholic minority.

During the visit, Leo is expected to promote interfaith dialogue, including a visit to the Great Mosque of Algiers, and travel to Annaba to see the ancient ruins of Hippo, associated with St. Augustine of Hippo, a central figure for the Augustinian order to which the pope belongs.

In Cameroon, Leo is scheduled to hold a peace meeting in Bamenda, a region affected by conflict between government forces and separatist groups since 2017.

The pope will also visit Bata, where he is expected to pray at the site of a 2021 explosion at a military barracks that killed more than 100 people.

Church officials and analysts say the tour reflects the Vatican’s strategic and pastoral focus on Africa, highlighting both the continent’s challenges and its role as a center of growth and vitality within global Catholicism.