The family of Gediminas is a group of family members of Gediminas, Grand Duke of Lithuania (c. 1275–1341), who interacted in the 14th century. The family included the siblings, children, and grandchildren of the Grand Duke and played the pivotal role in the history of Lithuania for the period as the Lithuanian nobility had not yet acquired its influence. Gediminas was also the forefather of the Gediminid dynasty, which ruled the Grand Duchy of Lithuania from 1310s or 1280s to 1572.

Gediminas' origins are unclear, but recent research suggests that Skalmantas (Skolomend), an otherwise unknown historical figure, was Gediminas' grandfather or father and could be considered the dynasty's founder. Because none of his brothers or sisters had known heirs, Gediminas, who sired at least twelve children, had the advantage in establishing sovereignty over his siblings. Known for his diplomatic skills, Gediminas arranged his children's marriages to suit the goals of his foreign policy: his sons consolidated Lithuanian power within the Grand Duchy of Lithuania, while his daughters established or strengthened alliances with the rulers of areas in modern-day Russia, Ukraine and Poland.

The relationships among Gediminas' children were generally harmonious, with the notable exception of Jaunutis, who was deposed in 1345 by his brothers Algirdas and Kęstutis. These two brothers went on to provide a celebrated example of peaceful power-sharing. However, Gediminas' many grandchildren and their descendants engaged in power struggles that continued well into the 15th century. Gediminas' grandchildren converted Lithuania to Christianity and inaugurated the first personal union with Poland.

Origins Because written sources of the era are scarce, Gediminas' ancestry, early life, and assumption of the title of Grand Duke in ca. 1316 are obscure and continue to be the subject of scholarly debate. Various theories have claimed that Gediminas was either his predecessor Grand Duke Vytenis' son, his brother, his cousin, or his hostler. For several centuries only two versions of his origins circulated. Chronicles—written long after Gediminas' death by the Teutonic Knights, a long-standing enemy of Lithuania—claimed that Gediminas was a hostler to Vytenis; according to these chronicles, Gediminas killed his master and assumed the throne. Another version introduced in the Lithuanian Chronicles, which also appeared long after Gediminas' death, proclaimed that Gediminas was Vytenis' son. However, the two men were almost the same age, making this relationship unlikely. In 1868, a letter issued by the Council of Riga in 1323 was published that contained a small note mentioning Vytenis as "the brother and predecessor" of Gediminas. After the letter came to light, textbooks almost universally represented Vytenis and Gediminas as brothers. However, historian Tomas Baranauskas believes the word "brother" has been interpreted too literally, and that the two were in fact cousins.

Grand Duke Vytenis' origins are relatively well-established; he was the son of Butvydas, who was Grand Duke of Lithuania from 1291 to 1295. No consensus exists about the identity of Butvydas' father. While some genealogies give Traidenis as the ancestor, this has been described as unlikely: the later marriage of Gediminas' daughter Eufemija and Traidenis' great-grandson Boleslaw-Yuri would have violated canon law, since the two would have been related by blood, and this violation would likely have been noticed by the pope.

Recent research indicates that Gediminids' ancestor may have been Skalmantas. In 1974 historian Jerzy Ochmański noted that Zadonshchina, a poem from the end of the 14th century, contains a line in which two sons of Algirdas name their ancestors: "We are two brothers – sons of Algirdas, and grandsons of Gediminas, and great-grandsons of Skalmantas." This discovery led to the belief that Skalmantas was the long-sought ancestor of the Gediminids.Rowell, S. C. Lithuania Ascending, pp. 52–55 Ochmański posited that the poem skipped the generation represented by Butvydas, and jumped back to the unknown ancestor. Baranauskas disagrees, believing Skalmantas was Butvydas' brother rather than his father, and that Vytenis and Gediminas were therefore cousins.

Siblings

It is known that Gediminas, born about 1275, had one sister (or possibly two, see below for the wife of Andrei of Kozelsk) and several brothers: Vainius, Fiodor of Kiev, possibly Vytenis, and possibly Margiris. If Vytenis, who was Grand Duke of Lithuania from about 1295 to 1315, was indeed Gediminas' brother, he was probably the eldest son. Historians recognize one son of Grand Duke Vytenis, Žvelgaitis, who may have died before his father. In 1310 Žvelgaitis, already a mature man, led an army to nearby Livonia in modern-day Latvia and Estonia.Nikžentaitis, Alvydas. Gediminas, p. 23 After Vytenis died in about 1315, Gediminas became the Grand Duke. There are no sources indicating that Vytenis' brothers or other family members advanced competing claims.Rowell, C. S. Lithuania Ascending, p. 60

Vainius first appears in written sources in 1324. In 1326, as Duke of Polatsk, he signed a treaty with the Livonian Order and Novgorod. Scholars place his death sometime between 1338 and 1342. Vainius' only known son, Liubko, died in 1342 during a battle with the Livonian Order.

Fiodor, whose relationship with Gediminas was not established until the 20th century, was the longest-lived brother, surviving until at least 1362. In about 1325, with help from Gediminas, he became a duke of Kiev. Fiodor was baptized in the Eastern Orthodox rite and his pagan name is unknown. Kiev was still under the influence of the Golden Horde, and Fiodor acknowledged fealty to the Horde's Khan. This subordination lasted until 1363, when Gediminas' son Algirdas soundly defeated the Horde in the Battle of Blue Waters. Scholarly opinion had long considered Fiodor a Rurikid, rather than a Lithuanian, because of his Christian name. In 1916, however, a list of property belonging to Theognostus, a deceased Metropolitan of Moscow, and compiled in the 1330s, was published; among the items listed were two silver cups gifted by "Fiodor, brother of Gediminas".Rowell, S. C. Lithuania Ascending, p. 100

Margiris, the defender of Pilėnai, is often suggested as the most likely candidate for the fourth brother. The chronicles of Hermann de Wartberge mention that in 1329 Gediminas and two of his brothers raided Livonia. By that time Vytenis was already dead and Fiodor was probably occupied with establishing himself in Kiev. One of these two brothers must then have been Vainius; the identity of the other still puzzles historians. Alvydas Nikžentaitis suggests that he was Margiris because sources attest to his high status and wealth. Sources mention one son of Margiris, who was captured by the Teutonic Knights soon after his father's suicide in 1336 and did not return.

The only direct written mention of Gediminas' sister is a legend describing the murder of two Franciscan friars who came to Vilnius to spread Christianity.Nikžentaitis, Alvydas. Gediminas, pp. 55–57 This legend was first presented in Chronica XXIV Generalium, a chronicle written before 1369. The events probably took place around 1340, and some eyewitnesses could still have been alive when the chronicle was written. According to the legend Friar Ulrich's preaching angered townspeople. He and his companion, Martin, were seized and brought before Gediminas, who ordered the friars killed. Ulrich was tortured and his body tossed into a river. Martin's body was rescued by Gediminas' sister, an Orthodox nun. She buried Martin at the monastery where she lived.Rowell, S. C. Lithuania Ascending, pp. 275–276 The legend was possibly as the basis for the legend of 14 Franciscan martyrs of Vilnius, first recorded in the Bychowiec Chronicle.

Wives

It is uncertain how many wives Gediminas had. The Bychowiec Chronicle mentions three wives: Vida from Courland; Olga from Smolensk; and Jewna from Polotsk, who was Eastern Orthodox and died in 1344 or 1345. Most modern historians and reference works say Gediminas' wife was Jewna, dismissing Vida and Olga as fictitious, since no sources other than this chronicle mention the other two wives. The historian S. C. Rowell argues that Gediminas' wife was a local pagan duchess, on the grounds that his marriage to a princess from a neighboring land would have been noted in other contemporary sources, and that the reliability of the Bychowiec Chronicle has been questioned.Rowell, S. C. Lithuania Ascending, pp. 87–88

An argument has been advanced that Gediminas had two wives, one pagan and another Orthodox. This case is supported only by the Jüngere Hochmeisterchronik, a late 15th-century chronicle, mentioning Narimantas as half-brother to Algirdas. Other historians support this claim by arguing this would explain Gediminas' otherwise mysterious designation of a middle son, Jaunutis, as his succession would be understandable if Jaunutis were the first-born son of Gediminas and a second wife.

Children and grandchildren Because none of Gediminas' siblings had strong heirs, Gediminas and his children were in a favorable position to assume and consolidate power in the Grand Duchy. Gediminas had at least five daughters and seven sons, whose shrewd marriages helped to consolidate and expand the Grand Duchy's influence to areas east and west of Lithuania. Those marriages speak to Gediminas' diplomatic talent in building alliances with the neighboring states that shared his goals to destroy the Teutonic Order and contain the growing power of Moscow and Poland. The marriages of Gediminas' sons helped to consolidate the dynasty's power over various territories already within the Grand Duchy, while his daughters' and granddaughters' marriages worked to strengthen Lithuanian relationships with neighboring powers.

Daughters

In 1320 Maria married Dmitri of Tver, ruler of a Rus' principality. The marriage took place soon after Mikhail Yaroslavich, Dmitri's father, was killed; his sons were searching for strong allies against Yury of Moscow, their principal competitor for the throne of Vladimir and All Rus'. After 1327 Lithuania began to supplant Tver as Moscow's chief rival for supremacy in the Rus'. When Tver sought to rival Moscow, it needed an alliance with Lithuania.Rowell, S. C. Lithuania Ascending, p. 114 Dmitri was killed in 1325 and Maria never remarried. Maria's brother-in-law, Alexander I, nevertheless maintained friendly relationships with the Grand Duchy of Lithuania and his daughter Uliana married Algirdas, the son of Gediminas, who continued the Gediminid line. The cooperation between Lithuania and Tver lasted well into the 15th century.

Aldona (baptized as Ona or Anna; her pagan name is known only from the writings of the 16th century chronicler Maciej Stryjkowski) married Casimir III of Poland, son of Władysław I of Poland, when he was 15 or 16 years old. The marriage took place on either 30 April or 16 October 1325, and was a purely political maneuver to strengthen the Polish–Lithuanian coalition against the Teutonic Knights (an alliance foreshadowing the Union of Krewo in 1385 and the Union of Lublin in 1569, with the latter resulting in a stable and powerful new state, the Polish–Lithuanian Commonwealth). This preliminary coalition was short-lived, collapsing in about 1330, but there is no evidence of military conflict between Poland and Lithuania while Aldona was alive.