杨坚 Traditional form: 楊堅 Pinyin (reading): Yáng Jiān Definitions: first Sui emperor Yang Jian (541-604), reigned 581-604 Characters: 杨 - willow, poplar, aspen; surname 坚 - hard, strong; firm, resolute Traditional characters: 楊 - willow, poplar, aspen; surname 堅 - hard, strong; firm, resolute