[2]: 111 In the summer of 1541, Ōuchi's Shirai sea lords led an attack against the Noshima, Kurushima, and Innoshima, reaching a standstill in the winter months.
[1]: 230 In the 1540s, a minor branch of the family based on the nearby Nakatoshima island launched a challenge over house leadership.
[2]: 113–4 In 1576, the Noshima helped break the Oda clan blockade and deliver provisions to Osaka's Ikkō-ikki citadel.
[1]: 233 In 1586, Portuguese missionary Luís Fróis, expressed his fear of travelling through the Inland Sea without flying the Noshima flag.
[1]: 234 The Noshima created a maritime toll road using ships: the protection against interlopers and rival companies possibly persuaded merchants to remain within the boundaries.