 In line with the double-stemmed names, shorter variants containing only one stem were also used, such as Vytenis and Kęstutis.Since there are few pre-Christian female names attested in written sources, they are often reconstructed from male variants, in addition to the historical Birutė, Aldona, Rimgailė etc.The use of Christian names in the Lithuanian language long predates the adoption of Christianity by Lithuanians.