の容態を

the condition of

→ の
phrase Rare #32,375
the condition of Used to refer to someone's health or medical condition. の marks the person whose condition is being discussed, and を marks 容態 as the object of the verb.
JA: 医者は患者の容態を確認した。
EN: The doctor checked the patient's condition.

ケンは彼のお父さんの容態を尋ねた

Ken asked about his father's condition.

彼女は彼の父親の容態を尋ねた

She asked about his father's condition.

太郎彼女の父親の容態を尋ねた

Taro asked about her father's condition.

メアリーは彼の父親の容態を尋ねた

Mary asked about his father's condition.