"quartered..."See in text(Book Two: 1805 - Chapter I)
Here, the verb "to quarter" means to lodge or house soldiers. Sometimes the occupying armies were domestic and sometimes they were foreign. Quartering soldiers was a burden on the local population of occupied communities.
"predilection for Bacchus..."See in text(Book Two: 1805 - Chapter II)
According to ancient Greek mythology, Bacchus (or Dionysus) was the god of wine. If someone has a predilection for Bacchus, then they have a preference for wine or, taken more broadly, a tendency to drink alcohol.