Peter I of Cyprus was a king who ruled from 1359 to 1369. He was a member of the Lusignan dynasty and is known for his efforts to strengthen the kingdom of Cyprus. His reign was marked by military campaigns and attempts to reclaim the Kingdom of Jerusalem. During his rule, Peter I sought to improve the economy and promote trade. He also established alliances with other powers in the region, including Venice and Aragon. His efforts contributed to the cultural and political development of Cyprus during the late medieval period.