Adam Sebag Montefiore was born in Kensington, London.
His father was Dr. Stephen Eric Sebag-Montefiore, descended from a line of wealthy Sephardi Jews who were diplomats and bankers in Italy and Morocco.
His mother was April Sebag-Montefiore (née Jaffe) from a family of poor Lithuanian Jewish scholars.
[4] Montefiore worked for Charrington (Bass Charrington) and Crest Hotels International (Bass Hotels & Resorts)[1][ in the UK, starting in beer and moving into wine.
After moving to Israel in 1989, he worked for Israeli wineries for twenty seven years.
In 2024, he was presented with the prestigious Terravino Lifetime Achievement Award in honor of his contribution to Israeli wine.