IX.x was married to Nenita, but they were legally separated from each other pursuant to a legal separation decree issued by the RTC of Manila. Nenita cohabited with Oscar who was already married to Perlita, with legitimate children, Solomon and Shiela. From Nenita and Oscar's cohabitation, Percival was born on March 9, 2010. Oscar died in a vehicular accident on November 1, 2022. Nenita, on Percival's behalf, intervened in the settlement of Oscar's estate contending that Percival is entitled to inherit as Oscar's son. Nenita presented Percival's baptismal certificate indicating Oscar as Percival's father, school report cards signed by Oscar as Percival's father and several pictures and videos showing Oscar and Percival together. In the same case above, (# IX), assume that Manuel died on February 14, 2009, more than a year prior to Percival's birth. May Percival, through his mother Nenita, prove his filiation to Oscar and inherit from his estate? Why or why not? Explain well.