An old story goes that the Duke made the acquaintance of Ludmilla of Bohemia with affection and she fearing he did it to delude her, hid three persons she trusted behind a curtain and gave them three pictures to hold up. This done, she begged of him to see her no more unless he promised to marry her before witnesses. The Duke hesitated and she pointed to the three pictures saying,"Those said persons should be witnesses to your promises." Louis, thinking those persons could never rise in judgement against him, made her all the protestations she could desire, so she drew back the curtains and revealed the three living witnesses. He was so taken with the contrivance that he solemnly married her afterwards.