The main landlords were Lord Dufferin and Lord Londonderry.

Entity and relation annotations:
id: 0
type: entity
value: text: Londonderry
labels: <Person>
id: 1
type: entity
value: text: Lord
labels: <Title>
id: 2
type: entity
value: text: Lord
labels: <Title>
id: 3
type: entity
value: text: Dufferin
labels: <Person>
type: relation
to_id: 2
labels: Person:holds_title:Title
from_id: 3
type: relation
to_id: 1
labels: Person:holds_title:Title
from_id: 0