Albert Barnes Commentary 1 Kings 21:16

"And it came to pass, when Ahab heard that Naboth was dead, that Ahab rose up to go down to the vineyard of Naboth the Jezreelite, to take possession of it." — 1 Kings 21:16 (ASV)

To take possession of it - The goods of traitors appear to have been forfeited to the crown by the Jewish law, as they still are almost universally throughout the East. Compare 2 Samuel 16:4.