Disgraced Cardinal George Pell has arrived at court as he begins his appeal to overturn his child sex abuse convictions. The former senior Vatican official was transported from prison to the Victorian Supreme Court in Melbourne on Wednesday for his appeal hearing. Lawyers for Pell will try to convince the court that their client was treated unreasonably during a jury trial which found him guilty of molesting choirboys. Pell has continued to deny sexually abusing two choirboys in the 1990s, which saw him sentenced to a maximum six-year jail term with a parole period of 3 years and eight months. He had been found guilty in December of raping one choirboy and molesting another after mass at St Patrick's Cathedral in 1996. Disgraced Cardinal George Pell (pictured) has arrived at court as he begins his appeal to overturn his child sex abuse convictions The former senior Vatican official was transported from prison to the Victorian Supreme Court in Melbourne on Wednesday for his appeal hearing The conviction was only publicised in February after a gag-order was lifted. A judge noted the cardinal could well die in prison. Pells appearance at court marks the first time he has been spotted since sentencing in mid-March. Professor Jeremy Gans, who heads the Melbourne Law School and is an expert on Victoria criminal law, said Pell has a strong chance of winning the appeal on the ground that the verdicts were 'unreasonable'. Pell's lawyers will firstly seek leave to appeal and, if granted permission, push ahead with a two-day challenge to the criminal convictions. His legal team, led by Sydney specialist appeals barrister Bret Walker SC, will argue the jury verdicts were 'unreasonable' on three grounds. His first argument will be the jury could not have been satisfied beyond reasonable doubt that Pell was guilty on the word of the complainant against the 'unchallenged' evidence of more than 20 witnesses who supported the cardinal. Secondly, that Judge Peter Kidd erred when he did not allow a video during closing arguments by Pell's barrister Robert Richter QC. They claim the video demonstrated the offending would have been impossible. Thirdly, Pell's lawyers will argue there was a 'fundamental irregularity' in the trial because the cardinal did not plead guilty or not guilty before the jury. Lawyers for the former senior Vatican official will try to convince the Victorian Supreme Court, in Melbourne, that their client was treated unreasonably during a jury trial which found him guilty of molesting choirboys (pictured, Pell leaves the County Court in Melbourne in February) Pell had requested to be in court for the appeal hearing, and the ABC reported he will be transported from prison (pictured, Pell leaves court following sentencing in March) The appeal will be heard by the chief justice of the Supreme Court of Victoria, Justice Anne Ferguson, president of the Court of Appeal Justice Chris Maxwell, and Justice Mark Weinberg. The appeal will be held in the Supreme Court rather than the Court of Appeal because of the scope of interest in the case. It will be streamed live online. A decision on the appeal could be weeks or months away and if unsuccessful, Pell has declared he won't appeal the sentence. Support groups have warned the appeal could be traumatic for people who have experienced abuse. 'With this appeal, there is a significant risk that many survivors will be triggered as a result, and thrown back into their own trauma, strong emotions and reactions,' Blue Knot Foundation president Cathy Kezelman said. His legal team, led by Sydney specialist appeals barrister Bret Walker SC, will argue the jury verdicts were 'unreasonable' on three grounds Pell's lawyers will argue that Judge Peter Kidd (pictured, during Pell's sentencing March) erred when he did not allow a video during closing arguments by Pell's barrister Robert Richter QC. They claim the video demonstrated the offending would have been impossible All rights reserved for this news site dailymail and under his responsibility