Rainier died at the age of 81 after a month in hospital with severe breathing and heart problems.
The funeral is to take place in Monaco's 19th century cathedral at midday and be broadcast on television screens at the six other churches in the principality.
"Several high-ranking foreign and local personalities are to attend," the official statement said.
After the service, his body will be interred in the crypt next to his wife, Grace Kelly, who died in a car crash in 1982.












