 Moldavia had fallen under Turkish domination, but Polish-Lithuanian magnates remained actively involved there.Sigismund II Augustus even claimed "jurisdiction" and in 1569 accepted a formal, short-lived suzerainty over Moldavia.In the 16th century the Grand Duchy of Lithuania became increasingly interested in extending its territorial rule to Livonia, especially to gain control of Baltic seaports, such as Riga, and for other economic benefits.