Summary from Wikipedia

Ionesco was born in Slatina, Romania. His father belonged to the Orthodox Christian church. His mother was of French and Romanian heritage. According to some sources, her faith was Protestant (the faith into which her father was born and to which her originally Greek Orthodox Christian mother had converted). According to other sources his mother was Jewish; however, this has been contested by his niece.[3][4][5] Eugène was baptized into the Orthodox Christian faith. Many sources cite his birthdate as 1912, this error being due to vanity on the part of Ionesco himself, ...