Wasium
Wasium was the suggested name of chemical element found J. F. Bahr. The name derived from the House of Vasa the Royal House of Sweden.
In 1862 Bahr analysed the mineral Orthite—Allanite-(Y)—from the Norwegian island Rönsholm and found an oxide which he concluded contained a new element. In the following years several articles were published making clear that the wasium oxide was a mixture of several other elements.