Pope Francis is due to conclude his multi-day visit to Belgium on Sunday by celebrating Mass at Brussels’ King Baudouin Stadium, attended by almost 40,000 believers from Belgium, Germany, France and the Netherlands. Around midday, the pontiff is set to leave the country and return to the Vatican following a brief farewell ceremony at the airport. At the start of the Mass, the head of the Catholic Church plans to beatify Anne of Jesus. The native Spaniard, who died in Brussels in 1621, was involved in founding convents in Antwerp, Tournai, Mechelen and Ghent, among other places. Anne of Jesus w…