Their Excellencies, the governors of …

|The Volokh Conspiracy |

Actor Keanu Reeves poses for photographers during the red carpet event for his movie "John Wick" in Seoul, South Korea, Thursday, Jan. 8, 2015. (AP Photo/Lee Jin-man)
Actor Keanu Reeves poses for photographers during the red carpet event for his movie "John Wick" in Seoul, South Korea, in January. (Lee Jin-man/Associated Press)

In which states are governors still called "Your Excellency," and in which contexts?