Angelo Caloia's lawyer and son were also found guilty and handed prison sentences.
In the Italian capital, dozens of refugees, poor and homeless people attended a charity event on Friday where they received lunch boxes and gifts from a Catholic community.
Carlo Acutis who died of leukemia in 2006 was described as the "patron saint of the internet".
Pope Francis is weighing whether to allow married men to be ordained to make up a shortage of priests
The Pontiff said he was sorry for 'losing patience' with the woman.
In unusual move, Vatican postpones beatification of first US 'televangelist'
Some saints wear halos, others sport helmets.
Pope Francis on Sunday declared five people saints, including Cardinal John Henry Newman, a leading 19th century Anglican who converted to Catholicism and became one of the most influential Christian figures of modern times.
He has summoned bishops, laypeople and indigenous groups to join him in discussing the environmental and sacramental challenges facing the region.
The pope criticised countries that sell weapons but do not accept refugees from conflicts where arms are used.