Zhèngyòu shì Rìběn Liáncāng shídài de yīgè niánhào.
Shōyū is an era name from Japan's Kamakura period.
Tips
culture
正佑 is most often a personal given name (Chinese Zhengyou or Korean Jeong-u). It is also the Japanese era name Shōyū (正中/正中→正佑 reading varies), used in the late Kamakura period.
memory
正 (upright/correct) + 佑 (to bless/protect) — a classically auspicious pair: 'upright and blessed.'