13. Felicia and Rocky met at a training convention and subsequently became lovers. They had children named Enrico and Euriz. One night while on his way home, Rocky met his end when his car collided with a speeding 15-wheeler truck along C-5 Road. A year later, the father of Rocky, Hilario, suffered a brain aneurysm and died. In the settlement of the estate of Hilario, Enrico and Euriz claimed an interest in the estate of their grandfather. They argued that as the biological children of Rocky, they are entitled to inherit from their grandparents by right of representation. The legitimate heirs of Hilario vehemently opposed the claim on the ground that Enrico and Euriz are barred from inheriting from the ascendants of Rocky. Are the legitimate heirs of Hilario correct? Explain your answer.