On July 29, 930, Kiyotsura, who was Shosanmi (Senior Third Rank) Gon Dainagon (provisional chief councilor of state) (concurrently, Minbukyo and Togu no Fu (Head Tutor of Crown Prince)) were struck by lightning in Seiryoden (Emperor's private residence) in the Imperial Court.
延長8年6月26日、正三位権大納言（民部卿・東宮傅兼務）であった清貫は宮中の清涼殿において落雷に遭遇する。