When an unmarried sibling dies without a will in Texas, the distribution of his estate will depend on whether he has any surviving descendants or parents.
If he is survived by descendants, the Texas Probate Code specifies that the entire estate will pass to them. If he is not survived by descendants, his estate will pass equally to his parents, if both are living.
Siblings would share in the estate if one or both parents were predeceased. If he has one surviving parent, that parent would receive only half of the estate, and the remaining one half would be divided among his siblings or their descendants.
All of the decedent’s estate would pass to his siblings or their descendents if he has no surviving parents.