Unfortunately, he disappeared from the media afterward. After many years had passed, not many knew him anymore, and they didn't even link him to the Grant heir since his businessman self rarely made a public appearance. All his pictures were also taken down from the internet after his unfortunate incident, so it wasn't really possible for Aysel to have met him, let alone married him. He was synonymous with God in the Grant family.
Another popular member of the younger generation was Michael Orion Grant, who had been making appearances online recently, claiming the title of the hottest dude in Sunshine City and already being compared to Nathaniel Grant, with people giving him more credit than he deserved.
Lise wouldn't be hypocritical to deny Michael's intelligence regarding business matters. Yes, he was smart; he would have been a true genius if there wasn't the existence of a formidable one like Nathaniel, who seemed to be born with an acute business sense.