According to this article, a Roman Catholic mother in New South Wales Australia – who involuntarily lost her parental rights to her child based on drug use and the manslaughter of her other child – unsuccessfully argued to the New South Wales Supreme Court that her child could not be adopted by a lesbian couple because (a) the lesbian couple refused to raise the child Catholic given the Church’s position on gay relationships; and (b) it was against the Roman Catholic mother’s religious beliefs.  

The Court did not disregard the arguments of the Roman Catholic mother, but instead decided the case on a multitude of factors that all focused on the best interest of the child.