Mario Borzaga was born on 27 August 1932 in Trent as the third of four children. He was ordained to the priesthood on 24 February 1957 and became a professed member of the Missionary Oblates of Mary Immaculate in 1952. Borzaga decided to join the missions in Laos that his order was overseeing and so left Naples with the first Italian team to Laos where he learnt about the language and the local culture in order to assimilate into the communities. In 1958 he operated in small villages before moving into the northern regions around the apostolic vicariate of Luang Prabang where he began teaching catechism and later met the layman Thoj Xyooj Paj Lug. On 25 April 1960 he and Lug – at the request of some of the villagers of Pha Xoua – began a three-day walk near the border of China and along the path lost their tracks but were later ambushed and killed by guerillas of the Pathet Lao. He was killed on 25 April 1960 in the town of Kiukatiam in Luang Prabang in Laos. It was said that Borzaga was allowed to go because he was a foreign priest but he responded to his attackers: "If you kill him, you kill me. If he dies, I will die". His remains were thrown into a pit with his companion and never identified with precision. He wrote a diary of his experiences and was later published as "To Be a Happy Man".
Lug
Thoj Xyooj Paj Lug was born in 1941 in Kiukatiam and was a lifelong layman and catechist from the apostolic vicariate of Luang Prabang. He was killed on 25 April 1960 in his hometown and his remains crudely thrown into a pit alongside his priestly companion.
Joseph Thąo Tiěn and 14 companions
The fifteen martyrs are a group of French priests and religious from the Society of Foreign Missions of Paris and the Missionary Oblates of Mary Immaculate; there were also four lay Laotian catechists in this group and all were killed between 1954 and 1970 under the communist movement known as Pathet Lao. During the Easter season of 1953, guerillas stormed Sam Neua and many missionaries retreated in order to remain safe while Joseph Thąo Tiěn remained behind – ordained in 1949 – and said: "I am staying for my people. I am ready to lay down my life for my Laotian brothers and sisters". He was then marched to the prison camp at Talang and told weeping people along the way: "Do not be sad, I'll come back. I am going to study... Make sure that your village keeps improving". The priest was sentenced to death and killed a year later and refused to give up the priesthood and marry as his captors ordered him to do. On the other side of Laos the priest John Baptist Malo – who served in China – was detained with four companions and died of exhaustion in 1954 en route to a prison camp. Other French priests and religious were killed and others died in captivity.
René Dubroux – priest of the Society of Foreign Missions of Paris
Louis Leroy – priest of the Missionary Oblates of Mary Immaculate
Michel Coquelet – priest of the Missionary Oblates of Mary Immaculate
Vincent l'Hénoret – priest of the Missionary Oblates of Mary Immaculate
Noël Tenaud – priest of the Society of Foreign Missions of Paris
Joseph Outhay Phongphumi – layman and catechist
Marcel Denis – priest of the Society of Foreign Missions of Paris
Jean Wauthier – priest of the Missionary Oblates of Mary Immaculate
Lucien Galan – priest of the Society of Foreign Missions of Paris
Thomas Khampheuane Inthirath – layman
Joseph Boissel – priest of the Missionary Oblates of Mary Immaculate
Luc Sy – layman and catechist
Maisam Pho Inpèng – married layman
Beatification
The beatification process for Borzaga and Lug commenced in Trent after the forum for the process was transferred from Luang Prabang on 30 September 2005 to Trent. The two were then titled as a Servant of God on 22 December 2006 under Pope Benedict XVI after the Congregation for the Causes of Saints issued the official "nihil obstat" and allowed the process to take place. The diocesan process spanned from 7 October 2006 to 17 October 2008 and the C.C.S. later validated the process on 19 June 2009 in a move that allowed for the postulation to send the Positio to the C.C.S. in 2014. Theologians approved the cause on 27 November 2014 while the C.C.S. also voted in approval on 5 May 2015. Pope Francis approved the beatification that very same day and confirmed the two were martyrs. The second cause commenced in Nantes and the transfer of the forum came from Savannakhet and other Laotian cities on 6 September 2007. The official "nihil obstat" came on 18 January 2008 and allowed for the inauguration of the diocesan process which started on 10 June 2008 and concluded its business on 28 February 2010; the cause was validated on 15 October 2011. The postulation sent the Positio to the C.C.S. in 2014 and theologians voiced their approval to the cause on 27 November 2014 while the C.C.S. also voted in favor on 2 June 2015. Pope Francis confirmed the group were martyrs on 5 June 2015 and approved their beatification. The beatification was celebrated in Vientiane Cathedral on 11 December 2016 in which Cardinal Orlando Quevedo presided on the pope's behalf. The current postulator for both these causes is the Rev. Thomas Kosterkamp.