Komaki Castle has been in the news of late and that is good news. According to recent studies on the castle, it seems that Nobunaga used more and more stone at Komaki. Three rows of stone. That is a lot of stone used during that time. I have been surprised myself how much stone was used at Komaki Castle. This was Nobunaga's first castle that he constructed on his own. Did he have Azuchi on his mind at the time? Who knows, but Komaki was certainly a dry run for Azuchi.