The scene took place in Bethany at the home of Simon—in the Bible he's called "Simon the Leper," perhaps because Jesus had healed him of that horrible disease. At any rate, he was giving a dinner party for Jesus just days before Jesus would give His life on the cross.  We don't have the entire guest list, but we know that Lazarus and his sisters, Mary and Martha, were present, along with at least some of the disciples, including Judas.