These words means "The Tokugawa family with Mitsubaaoi-mon (one of family crests designed with a mallow leave), the Maeda family with Kenumebachi-mon (one of family crests designed with a Japanese apricot flower), ume blossoms bloom at the higher place than aoi."
『三葉葵紋の徳川家よ剣梅鉢紋の前田家よ梅の花は葵より高い所に咲く』という意味である。