Past perfect means a past event refers to (or helps explain) a later past event. No part of your sentences needs these forms. Here's your corrected text: My grandfather lived in a small village in Italy when he was a child. At the age of nineteen, he moved to Rome, where he met my grandmother, and later married in 1947. My father was born in 1950. I was born in 1979. All of these events follow in sequence, and don't need the "perfect" form. To put some parts into the past perfect form, here are a couple of examples: He married my grandmother in 1947. He had met her in Rome. (past perfect simple... if he didn't meet her in Rome, then the marriage becomes impossible) He had been living in Rome when he met my grandmother. (past perfect progressive... if he didn't live in Rome for some time [progressive], then meeting your grandmother becomes impossible)

They're all wrong anyway. You should be using the past tense throughout.

sorry, I've forgotten to put “he” on between where and had.→ At nineteen, ha had moved to Rome, where he had met and had married my grandmother in 1947.