In general they probably drank wine. Wine can’t go above about 13% alcohol by volume as that is the point that the yeast start to die.
However in those days most people watered the wine, only drunks drank wine straight up.
One should also note that until the last 100 or so years beer and wine were the only safe thing to drink. Water and milk had about a million pathogens. Food safety is one of the reasons that people live a lot longer now then 200 years ago.