Nathan Petrelli was created in 2006.
Nathan Petrelli Can Fly
Everyone dies eventually
Angela Petrelli was created in 2006.
Peter Petrelli was created in 2006.
Future Peter shot nathan, he had seen the effect that Nathans revalation would make, and needed to prevent it.
Nathan Petrelli is Claire's biological father, but Noah Bennet (aka HRG) is her adoptive father.
Nathan Petrelli never lost his powers in Heroes unless you count the eclipse when they came back naturally in season 3 episode 11 "The eclipse part 2". If you meant when did Peter Petrelli get his powers back it was in Season 3 episode 13 "dual" by injecting himself with the formula however his power was different to his original power as he could only hold on to one power at a time and he had to touch the person to absorb the power :).
Danny Petrelli is 6' 2".
Giuseppe Petrelli was born in 1876.
Giuseppe Petrelli died in 1957.
Tino Petrelli was born in 1922.
Tino Petrelli died in 2001.