Anthony Pierce, 84, the former Bishop of Swansea and Brecon, pleaded guilty at Swansea Crown Court in February 2025 to five counts of indecent assault on a child under 16.
Pierce, from Swansea Vale, was sentenced to four years and one month in prison.
He will also be placed on the sex offenders register for life and subject to a Sexual Harm Prevention Order.
South Wales Police said it has received three further reports of historical offences believed to have taken place in the 1970s and 1980s which are currently under investigation.
Detective Inspector Tom Richardson, of Swansea CID, said: “We know how difficult it must be for anyone to have suffered abuse in the past to come forward now.”
He explained the victim who reported Pierce played a key role in securing his conviction.
He said: “It was the bravery of the victim who reported Pierce’s actions which was instrumental in bringing him to justice.
“Since the conviction and sentencing of Pierce we have received reports from three people who have taken that first step in coming forward.
“We believe that there may be others who have been subject to Pierce’s crimes and we want to provide reassurance that any reports will be fully investigated and dealt with sensitively and with compassion.
“We recognise that coming forward can be daunting but would encourage victim-survivors to speak with us so they can get the support and help they deserve.”
Anyone wishing to contact police can call 101 quoting occurrence number 2600140999.
Full details on how to report sexual offences and access support can be found on the South Wales Police website.
