If I remember correctly, he organized a banquet and the guests are I think some corrupt officials. After the ceremony he had all of the guests killed and impaled just the way you described.
I also like Greek mythology. We studied not long ago. And we actually had a simple play. I took on the role of Hermes! haha
But my real favorite is the story of Cuchulain in Irish mythology. In case you don't know him, this may give you an idea who he is. In the anime, Fate/Stay night, he's actually the servant, Lancer.
I read about him in wikipedia and thought he's really cool.