Carlo Acutis, who died in 2006 at 15 years old, was known as "God's influencer" and used technology to spread his faith.

Carlo, who died at 15, was canonized alongside Pier Giorgio Frassati, who also died young. The church is looking to the two saints to inspire new generations of Catholics.

Pope Leo XIV was set to declare a 15-year-old computer whiz, Carlo Acutis, the first millennial saint on Sunday, giving the next generation of Catholics a relatable role model who used technology to spread the faith and earn the nickname “God’s influencer.

The first millennial saint has been canonised by Pope Leo on Sunday, with thousands attending the ceremony in Rome. Carlo Acutis, a London-born Italian boy, died of leukaemia in 2006, aged 15. He has been labelled "the patron saint of the internet" for his work recording miracles online, and running websites for Catholic organisations.