Familypedia:Info pages/siblings

On an article for a person who has an info page, if either parent has an info page, you may use,  or  , if the selected parent had no previous recorded partner.

If either had an earlier partner, it is tricky and you may be quicker pasting the children in from the info page(s), although that loses the benefit of automatic updates of their birth and death info. See Template talk:Showinfo children.