Who forbade all gods and goddess to see their mortal children?

In Greek mythology, the Titan Cronus forbade all gods and goddesses from seeing their mortal children. This decree was driven by his fear of being overthrown by one of his offspring, as he had previously swallowed his children to prevent this fate. However, Rhea, Cronus's wife, secretly saved their youngest son, Zeus, who ultimately led a rebellion against Cronus and the Titans.