TOKYO, Japan — Shoichi Nakagawa burst onto the global stage in an embarrassing, and memorable way. He appeared to be drunk at the G7 news conference in Rome, Italy, falling asleep as reporters questioned the world leaders. He apologized for his behavior, but denied it was the result of heavy drinking.

A man delivers flowers to Nakagawa’s home.

But that behavior led to his resignation as finance minister and multiple jokes told through Japan, including a downloadable mobile phone game where players win by keeping the apparently drunk finance minister awake.

That may have been a shocking event to world viewers, but in Japan, what followed in the election was far more stunning. Nakagawa lost in the August 30 general election, marking the collapse of what had been dubbed the “Nakagawa Kingdom.” That name came from the strong electoral power base built by his father. Supporters cried in Nakagawa’s arms on election night and pledged to fight in the next election. Nakagawa appeared calm and respectful.

But privately, former Chief Cabinet Secretary Takeo Kawamura surmised the loss was far more shocking. Kawamura, to reporters in Tokyo, said Nakagawa may have been both physically and mentally exhausted due to the shock of losing in the election.

Police have no ruling yet on the cause of Nakagawa’s death. But at age 56, he is one year younger than his father was when he died. Nakagawa himself entered politics after his father’s death, which was ruled a suicide.

As word spread through Tokyo, old political friends lined up outside Nakagawa’s home to mark the sad passing. To them, Nakagawa still had a future with domestic politics, but both that and his life were cut short before their time.