Art. 2857 Proponent must produce witnesses; subpoenas

If you're asking the court to accept a will as valid, you're responsible for bringing in the witnesses needed to prove it's legitimate. This means showing up to the probate hearing with the right people who can confirm the will was properly signed and witnessed.

You don't have to hope these witnesses show up on their own. You have the right to subpoena them, which means you can legally require them to appear in court and testify. This gives you a way to make sure your witnesses actually come to the hearing, even if they're not willing to show up voluntarily.

In short, the burden is on you as the person seeking to probate the will. The court won't track down witnesses for you. It's your job to identify who needs to testify, get them to court, and use a subpoena if necessary to make sure they attend.