Los nombre-s del niñ-o (de los niñ-o-s)/ de la niñ-a (de las niñ-a-s) eran alemán […]
the name(M)-PL of.the child-M.SG of the child-M -PL of the child-F.SG of the child-F-PL were German.M
The names of the child(ren) were German […]