Milane Diane Frantz (née Duncan, born 1970) is a billionaire heir to the Duncan family fortune through Enterprise Products, which remains under family control.
Milane Frantz was born in 1970 to Barbara Ann and Dan Duncan.
[1] Her father, Dan Duncan, was the co-founder of Enterprise Products.
[3] Due to a temporary repeal in the estate tax law for the year 2010, Duncan's children became the first American billionaires to pay no estate tax since its enactment.
[4] Frantz's net worth is $4.3 billion, as of April 2020.