義絶 (gizetsu or disownment) was almost the same except that parent(s) or grandparent(s) should disclose the fact inside and outside the family and make an epistle of disownment as a proof and that they were excluded from complicity in a crime even if their child (or a grandchild) committed a crime.
なお、義絶もほぼ同一であるが、父母（祖父母）側は内外にその事実を公表して証拠となる義絶状を作成すること、子（孫）が犯罪を犯しても連座の対象にならないことに違いがあった。