William Joseph "Billy" Andrepont, 36, a resident of Baton Rouge, died on Monday, January 7, 2019. He is survived by his father, Joseph E. Andrepont II; two sisters, Cathy Wilson and her husband Tommy Wilson III; Demetra Andrepont Watson; and grandmother Demetra Katsina. He was preceded in death by his mother, Georgia K. Andrepont.