Lucas Weasley is not a character in Harry Potter. The only member of the Weasley family to die throughout the series was Fred Weasley, one of Ron's elder brothers and the twin of George Weasley. He died during the final battle when a wall collapsed.
No, both Mr and Mrs Weasley survive.
As of Deathly Hallows, George Weasley is still alive and canonically not dead.
The actor who plays Ron Weasley is still alive. He also did not die in the books.
Lucas Vorsterman died in 1675.
Lucas Gassel died in 1568.
No, only Fred Weasley died.
No, both Mr and Mrs Weasley survive.
Yes, Fred Weasley died.
No, but Fred Weasley dies.
No
Very sadly yes Fred Weasley dies.
As of Deathly Hallows, George Weasley is still alive and canonically not dead.
No!!! Lucas did not die! He is as alive and as funny as ever. He is 17, and at the top of his career.
No, the only family member who died was Fred Weasley.
No, Molly Weasley survived.
The actor who plays Ron Weasley is still alive. He also did not die in the books.
No he does not, but he looses his ear from Severus Snape cursing it off. **SPOILER** George Weasley doesn't die, but his twin brother, Fred Weasley, dies from an explosion during the battle of Hogwarts.