Friedel Tietze (1908–1953) was a German luger who competed in the late 1930s. She won two gold medals in the women's singles event at the European luge championships (1938, 1939).
Being a typical member of the lanthanide series, samarium usually has the oxidation state +3. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides SmS, SmSe and SmTe, as well as samarium(II) iodide.