Please let me know the status of my grandfather's birth registration, whose process no. Is 19626-11 INI at the Conservatoria dos Registos Centrals, lisbon.thank you.

No one here is affiliated with Lisbon's offices.

You would have to call THEM and ask.

Agree, we are a international question and answer site, I will assume you know the contact info about this. You will need to contact their office directly.