After a member of an Imperial family has passed away, the prefix of 'Late' is added and the title of honor is omitted, for example 'the Late Empress Dowager' or 'the Late Princess Kikuko.'
皇族が「崩御」ないし「死死の表現」した後は、「故皇太后」や「故宣仁親王妃喜久子」と、上記に「故」が冠され敬称が省かれる。