It is said that, while Ienari lived in glory, he breathed his last without anyone realizing it, for which his chief physician, Seihoin YOSHIDA, was held responsible and punished (according to the "Diary of Takako IZEKI").
このように栄華を極めた家斉であったが、その最期は誰ひとり気づかぬうちに息を引き取ったと伝えられ、侍医長・吉田成方院は責任を問われ処罰された（『井関隆子日記』）。