Seven Columbans were killed during the early days of the Korean War.
Movement has "stood the test of time" but needs to move outwards and spread the message to other couples.
Dom Aidan Bellenger, Abbot of Downside Abbey, the location of St Oliver's tomb, to preach homily.
Chiara Luce Badano died in 1990 and was beatified by Pope Benedict in 2010.
Heart of infant who was stillborn started beating again an hour after his birth.
3,000 Irish pilgrims attend canonisation of John XXIII and John Paul II.
Over 124 Koreans who lived between 1791 and 1888 recognised as martyrs for their refusal to renounce their faith.