Targum zu Kohelet 2:4

I multiplied good works in Jerusalem. I built houses, viz., the temple, to make atonement for Israel, and a royal palace, and the conclave, and the porch, and a house of judgment of hewn stones, where the wise men sit, and the judges, to give judgment; I made a throne of ivory for the sitting of royalty; I planted vineyards in Jabne, that I and the Rabbis of the Sanhedrin might drink wine, and also to make libations of wine, new and old, upon the altar;