Christian Leclerc, the conservative mayor of Champlan, about 23 km south of Paris, has explained his refusal on the grounds that the cemetery has "few available plots."
"Priority is given to those who pay their local taxes," Leclerc was quoted by Le Parisien daily as saying. The mayor was not available yesterday for comment.
Critics, however, believe his decision to refuse the nearly three-month-old girl a final resting place was motivated by anti-Roma sentiment.
"It's racism, xenophobia, and stigmatisation," Loic Gandais, president of an association helping Roma families in the region, said yesterday.
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The infant was rushed to hospital on December 26 in the nearby town of Corbeil-Essonnes, where she was declared dead from sudden infant death syndrome.
The child's parents are Romanian natives who have lived in France for at least eight years, according to supporters.
Their two other children are attending school in Champlan.
Faced with the mayor's refusal, they have arranged for their daughter to be laid to rest Monday in the town of Wissous, a few km from Champlan.
Successive governments have drawn fire for demolishing numerous camps and evicting families with children, although some in France have cheered a tough approach.
Roma families in Champlan live on two plots without water or electricity.
Though many towns around Paris struggle to integrate Roma migrants some have been moved by the plight of Maria Francesca's parents.
Explaining his offer to host the burial the conservative mayor of Wissous, Richard Trinquier, told AFP it was "a question of humanity".
"The pain of a mother who carried a child for nine months, and lost her after two and a half months must not be worsened.