The victim who testified at Pell's trial said after the conviction was revealed that he has experienced "shame, loneliness, depression and struggle". In his statement, the man said it had taken him years to understand the impact the assault had on his life.
Lawyer Lisa Flynn said the father of the second victim, who died of a heroin overdose in 2014 at the age of 31, is planning to sue the church or Pell once the appeal is resolved.
Pell's lawyer, Robert Richter, initially wanted details of the trial suppressed until his appeal was heard, but withdrew the application.
Another of Pell's lawyers, Paul Galbally, said Pell continued to maintain his innocence.
"Although the cardinal originally faced allegations from a number of complainants, all of those complaints and allegations save for the matters that are subject to the appeal have all been either withdrawn or discontinued," Galbally said.
Pell was initially charged with more than 20 charges of sexual abuse against various complainants.
The revelations came in the same month that the Vatican announced Francis approved the expulsion from the priesthood for a former high-ranking American cardinal, Theodore McCarrick, for sexual abuse of minors and adults.
The convictions were also confirmed days after Francis concluded his extraordinary summit of Catholic leaders summoned to Rome for a tutorial on preventing clergy sexual abuse and protecting children from predator priests.
The jury convicted Pell of abusing two boys whom he had caught swigging sacramental wine in a rear room of Melbourne's St Patrick's Cathedral in late 1996, as hundreds of worshippers were streaming out of Sunday services. Pell, now 77 but 55 at the time, had just been named the most senior Catholic in Australia's second-largest city, Melbourne.
The boys were both 13 years old. The jury also found Pell guilty of indecently assaulting one of the boys in a corridor more than a month later.
Pell had maintained his innocence throughout, describing the accusations as "vile and disgusting conduct" that went against everything he believed in.
Richter, his lawyer, had told the jury that only a "mad man" would take the risk of abusing boys in such a public place. He said it was "laughable" that Pell would have been able to expose his penis and force the victim to take it in his mouth, given the cumbersome robes he was wearing.
Francis appointed Pell Economy Minister in 2014. In October, Francis cut Pell loose, removing him as a member of his informal cabinet. Pell technically remains prefect of the Vatican's Economy Ministry, but his five-year term expires this year and is not expected to be renewed.
- AP