甲的爷爷和乙的奶奶是亲兄妹，那么甲乙结婚是否属于近亲结婚？
希望能够告诉我，划分近亲非近亲的科学办法！谢谢！
推荐回答（4个）
并非属于近亲
中国伦理 所谓的 非近亲 是指 三代 或者三代以上 旁系亲属 结合
注意是 旁系 亲属
你指出 其中 乙 的奶奶 和甲的爷爷是亲兄妹 那么乙 姓氏并非 甲族亲系
那么乙 属于旁系 甲和乙 如果论的话 是表兄妹
至于三代 可以分析为 甲乙爷爷与奶奶 为1代 父母为第二代 甲乙本身为第三代
所以 甲乙 并不属于 直系近亲
但是 乙要称呼 甲的爷爷 为舅爷 甲要称呼 乙的奶奶 为姑奶
可以算 是旁系近亲
但是中国历史上 有很多 像这种表妹表哥 结合的例子 这种情况 也不为过
广东胡律师：
三代以内的计算方法是： 三代以内的直系血亲，是指出自同一祖父母（外祖父母）的直系血亲。三代以内指祖父母（外祖父母）为一代，父母为第二代，已身为第三代，在一个家庭中，形成了祖孙（祖父母与孙子女，外祖父母与外孙子女）关系和父母子女关系。我国婚姻法关于禁止结婚的规定，直系血亲均在禁止之列。禁止直系血亲之间的结婚，不仅我国法律所规定，也是世界各国的通例。 三代以内旁系血亲是指出自同一祖父母、外祖父母的旁系血亲。三代以内旁系血亲包括：
1.兄弟姐妹。包括同父同母的全血缘的兄弟姐妹，同父异母或同母异父的半血缘的兄弟姐妹。
2.伯、叔、姑与侄、侄女，舅、姨与甥、甥女。
3.堂兄弟姐妹，表兄弟姐妹。根据我国婚姻法规定，凡三代以内的旁系血亲，包括辈份相同者与不同者，均禁止结婚
不属于，因为这不在三代人以内。（所有三代人以内直系亲属的结婚都是属于近亲结婚） 甲的爷爷和乙的奶奶的爸爸和妈妈（这是第一代）甲的爷爷和乙的奶奶是亲兄妹（这是第二代了）甲乙的爸爸和妈妈（第三代）甲乙（第四代）
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