None of my charcters' back stories can go any further back than 62 years, but I might show Mrs. Moon's teen years, but that will have to come a little later, as I don't want too much spoiled XD.
But having super old characters like yours is a nice trick as you have hundreds of years of content you could write XD.
And yeah, baby Kattar is going to be so cute to write. He was such a sweet, weirdly sad little kid.