Nassau Plantation was a 4,428 acres (17.92 km2; 6.919 sq mi) endeavor purchased by the Adelsverein on January 9, 1843, in Fayette County, Texas, near what is now Round Top.
[4] The acreage was developed as a full working plantation using slave labor bought by Count Boos-Waldeck in New Orleans, Galveston, and Houston.
[7] One of the early managers of Nassau appointed by Prince Solms was Friedrich W. von Wrede, Sr.[8] from Oberhausen, Germany.
On October 24, 1845, Wrede and New Braunfels botanist Oscar von Claren[9] were scalped and killed by native American Comanches while camping about ten miles from Austin.
Gustav Dresel, Special Business Agent for the Adelsverein, sold Nassau plantation and its twenty-five slaves on July 28, 1848, to Otto von Roeder.