So Henry asked the church for an annulment instead, on the grounds that the marriage was incestual.
因此,亨利要求教会以乱伦为理由宣布婚姻无效。
英语百科
Incest 近亲性交
(重定向自Incestual)
Incest is sexual activity between family members or close relatives. This typically includes sexual activity between people in a consanguineous relationship (blood relations), and sometimes those related by affinity, such as individuals of the same household, step relatives, those related by adoption or marriage, or members of the same clan or lineage.