Château Beau Séjour Bécot sits on the slopes above Château Angelus, half a mile west of the town of St Emilion. It was once part of a larger Château Beauséjour estate which was owned by the de Carle family who owned Château Figeac. After a couple of changes of ownership, the estate was divided in 1869 between the children of Pierre-Paulin Ducarpe - his daughter's share became Château Beauséjour-Duffau-Lagarosse, whilst his son's, eventually, became Château Beau Séjour Bécot. The Bécot part of the name only became attached in 1969 when Michel Bécot bought the estate, and the Bécot family own it to this day.
The controversial addition to Beau Séjour Bécot of some other vineyards owned by the Bécot family, an addition which nearly doubled the size of the estate, led to its demotion from Premier Grand Cru Classé status to "only" Grand Cru Classé status in 1979. Relentless work to prove that the new larger estate was as good, if not better, than before paid off in 1996 when Château Beau Séjour Bécot was re-elevated to Premier Grand Cru Classé status.
The vineyards are a fairly typical mix of 70% Merlot and 24% Cabernet Franc with a small quantity of Cabernet Sauvignon. Maturation is in mostly new oak.