Question: What is the real name of the Prussian Lithuanian poet and philosopher who came up with the idea of the religious movement Baltic Neopaganism?

Context articles: Baltic neopaganism
Sigitas Geda
Jonas Smalakys
Slavic Native Faith
Vydūnas
Heathenry (new religious movement)
Directorate of the Klaipėda Region
Lietuvininkai we are born
Kristijonas Donelaitis
Salomėja Nėris

Baltic Neopaganism is a category of autochthonous religious movements which have revitalised within the Baltic people (primarily Lithuanians and Latvians).
 These movements trace their origins back to the 19th century and they were suppressed under the Soviet Union; after its fall they have witnessed a blossoming alongside the national and cultural identity reawakening of the Baltic peoples, both in their homelands and among expatriate Baltic communities.
 One of the first ideologues of the revival was the Prussian Lithuanian poet and philosopher Vydūnas.
Sigitas Geda (full name - Sigitas Zigmas Geda; February 4, 1943 – December 12, 2008) was a Lithuanian poet, translator, playwright, essayist, critic and a member of the Lithuanian independence movement, Sąjūdis, and of the Lithuanian parliament, Seimas.
Jonas Smalakys (1835–1901) was a Prussian Lithuanian landowner, soldier, and the first Prussian Lithuanian to be elected to the Reichstag.
The Slavic Native Faith, Rodnovery, is a modern Pagan religion ("Slavic Neopaganism").
 Classified as a new religious movement, its practitioners harken back to the historical belief systems of the Slavic peoples of Central and Eastern Europe.
 "Rodnovery" is a widely accepted self-descriptor within the community, although there are Rodnover organisations which further characterise the religion as Orthodoxy, Old Belief, and Vedism.
Wilhelm Storost, artistic name Vilius Storostas-Vydūnas (22 March 1868 – 20 February 1953), mostly known as Vydūnas, was a Prussian-Lithuanian teacher, poet, humanist, philosopher and Lithuanian
Heathenry, also termed Heathenism or Germanic Neopaganism, is a modern Pagan religion.
 Scholars of religious studies classify Heathenry as a new religious movement.
 Its practitioners model their faith on the pre-Christian belief systems adhered to by the Germanic peoples of Iron Age and Early Medieval Europe.
 To reconstruct these past belief systems, Heathenry uses surviving historical, archaeological, and folkloric evidence as a basis, although approaches to this material vary considerably.
The Directorate of the Klaipėda Region (German: "Landesdirektorium" ; Lithuanian: "Klaipėdos krašto direktorija" ) was the main governing institution (executive branch) in the Klaipėda Region (Memel Territory) from February 1920 to March 1939.
 It was established by local German political parties to govern the region between the signing of the Treaty of Versailles and establishment of French provision administration.
 Instead of replacing it, the French legitimized the Directorate.
 It mainly represented German interests and supported the idea of leaving the region as a free city, similar to the Free City of Danzig.
 Dismayed Lithuanian government and Prussian Lithuanian activists, who campaigned for incorporation into Lithuania, organized the Klaipėda Revolt in January 1923.
 The revolt was staged as a popular uprising against the unbearable oppression by the German Directorate.
 The revolt was successful and the region was incorporated into Lithuania as an autonomous region, governed by the Klaipėda Convention of May 1924.
Lietuvininkai we are born (German: "Als Litauer sind wir geboren" , Lithuanian: "Lietuvninkai mes esam gimę" ) is a Lithuanian-language patriotic and sentimental poem written by the German linguist Georg Sauerwein in 1879.
 It is a passionate defense of Prussian Lithuanian (Lietuvininkai) language and culture, rallying people to resist Germanisation attempts.
 However, at the same time the poem proclaimed love and loyalty to the Kaiser signifying that the rally was cultural and not political.
 It was inspired by Enlightenment ideas that archaic languages and traditions of minorities should be cherished, studied, and preserved.
 The poem was first published in the Prussian Lithuanian newspaper "Lietuwißka Ceitunga" in 1879.
Kristijonas Donelaitis (1 January 1714 – 18 February 1780; Latin: "Christian Donalitius" ) was a Prussian Lithuanian Lutheran pastor and poet.
 He lived and worked in Lithuania Minor, a territory in the Kingdom of Prussia, that had a sizable minority of ethnic Lithuanians.
 He wrote the first classic Lithuanian language poem, "The Seasons" (Lithuanian: "Metai" ), which became one of the principal works of Lithuanian poetry.
 The poem, a classic work of Lithuanian literature, depicts everyday life of Lithuanian peasants, their struggle with serfdom, and the annual cycle of life.
Salomėja Nėris (real name Salomėja Bačinskaitė - Bučienė) (November 17, 1904 – July 7, 1945) was a Lithuanian poet.