The following are my interpretations of the chronological timeline of a narcissistic/borderline parent. I made this 5 minute video a while ago, but I didn't like it, so I never worked on the additional modules. It is still accurate though so take what you like and leave the rest.
Over time I've tweaked the timeline and separated out adolescence because that is the time a personality disorder becomes fixed, and so many adolescence are involved in these cases.