At the time of his death, Kunisada had one son, Chikatsumaru NAITO, so Munesada took Chikatsumaru and sheltered him at Sonobe-jo Castle, holding out there until Nagayori MATSUNAGA's reinforcements arrived.
この時、国貞には一子内藤千勝丸がおり、宗貞は園部城において千勝丸を匿い、松永長頼の援軍が到着するまで持ちこたえた。