A three-year-old girl baptised in a 13th century church is to launch a fundraising appeal by opening a toilet.
The new toilet and baby changing area cost £25,000
Parish officials said the toilet and baby changing unit, which cost £25,000, would bring All Saints' Church, Shepreth, into the 21st century.
Eloise Quantrill, who lives near the church, will tear down a ribbon of pink toilet paper to formally declare the facilities open on 2 December.
The "Spend A Penny" appeal is to try to recoup the toilet building costs.
"The creation of the extension has a serious side and will bring a medieval church into the new millennium," said vicar, the Rev Christopher Strong.