1604 establishments in the Holy Roman Empire

{| align="right" class="toccolours" |- |colspan=2 align="center" |Palatinate-LandsbergPfalz-Landsberg |- |colspan=2 align="center" |1604 - 1681 |- | |- |width=138px| CapitalCircleBench |width=138px| Burg LandsbergUpper RhenishCouncil of Princes |- |Partitioned from County Palatine of Zweibrücken |1604 |- |Inherited Zweibrücken |1661 |- |Extinct; to Sweden |1681 |- |} Palatinate-Landsberg was a state of the Holy Roman Empire based around Landsberg Castle near Obermoschel, in southwestern Germany.