The Castle was upgraded during the Napoleonic Wars period, with additional barracks.

Entity and relation annotations:
id: 0
type: entity
value: text: The Castle
labels: <Location>
id: 1
type: entity
value: text: during the Napoleonic Wars
labels: <Date>
id: 2
type: entity
value: text: the Napoleonic Wars
labels: <Event>
type: relation
to_id: 1
labels: Event:Occurs_on:Date
from_id: 2