His wife was Shimazu Chimoko who born him son Shimazu Tadayoshi.

Entity and relation annotations:
id: 0
type: entity
value: text: Shimazu Chimoko
labels: <Person>
id: 1
type: entity
value: text: Shimazu Tadayoshi
labels: <Person>
type: relation
to_id: 1
labels: Person:family:Person
from_id: 0