A political row has erupted in Italy after a memorial was opened to fascist commander Field Marshal Rodolfo Graziani, a convicted war criminal.

Graziani was honoured with a mausoleum and memorial park, built at taxpayers' expense, in a village south of Rome.

He was notorious as Benito Mussolini's military commander in colonial wars in Ethiopia and Libya where he carried out massacres and used chemical weapons.

Italy's main leftist party has protested against the commemoration.

"Is it possible to allow, accept or simply tolerate that, in 2012, we dedicate a park and a museum to the fascist general and minister Rodolfo Graziani?" asked Esterino Montino, head of the Democratic Party in the Lazio region.

He pointed to the "crimes against humanity committed by Graziani in Ethiopia in the 1930s", La Repubblica newspaper reports. He used poison gas and chemical weapons against Ethiopian tribesmen during Italy's colonial war in what was then called Abyssinia.

Graziani was sentenced to 19 years' imprisonment for war crimes in 1948 but was released from jail after serving only two years, and died in 1955.

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