The Jomon (family crest) is Maru ni Maizuru (a crane in a circle) at first, but was later changed to Sumikiri Icho (ginkgo leaves in an octagon) (For details, refer to 'Kaku-ji Hatto' [The prohibition law against the use of a Chinese character "crane"]).
定紋は、初め丸に舞鶴（まるにまいづる）だったが、のち角切銀杏（すみきりいちょう）に代わった（→詳細は「鶴字法度」を参照）。