Question: Where is a will probated?

Answer:   A will must be probated in a county that has jurisdiction and venue over the matter. A will must be probated in the county where the deceased resided, if he had a domicile or a fixed place of residence in Texas. Texas Probate Code section 6(a). If no such domicile or fixed place of residence, but died here, then probate of his will would be appropriate in the county where the decedent's principal property is located, or in the county where he died. Texas Probate Code section 6(b).

There are other provisions in case your scenario does not fit within the above circumstances.