[3] Historian Teodor Narbutt (1784–1864) later added many colorful details to the story, including Vytautas illness and maid Alena, who sacrificed herself to save her master.

After the failed coup Anna followed her husband to the Teutonic Knights, where Vytautas asked for an alliance against his cousins Jogaila and Skirgaila in the Lithuanian Civil War (1389–1392).

[6] After the disagreements were settled in 1392, Anna confirmed the Ostrów Agreement, the peace treaty which made Vytautas the Grand Duke of Lithuania.

While they spoke for a long time, a fire broke out burning half of the city, leading the Hungarian nobles to suspect Vytautas's people.

After the visit was finished, Vytautas and his wife Anna gave many presents to Sigismund including a coat, a hat and gloves made of sable fur and embroidered in gold.

Details of all these presents "given by Vytautas's wife" were recorded in a 15th-century chronicle by Eberhard Windeck [de], a close associate of Sigismund of Hungary.

[8] Anna continued to maintain good relationship with the Teutonic Knights, who sent her expensive gifts, including a clavichord and portative organ in 1408 and rare wine in 1416.

Polish historian Jan Długosz asserts that Ivan of Karachev, first husband of Uliana, was murdered by Vytautas in order to marry her.

[11] The Bishop of Vilnius refused the ceremony due to their close relationship (Vytautas was Uliana's uncle-in-law) and demanded they seek approval from the pope.

According to the Bychowiec Chronicle, a late and unreliable source, Anna was a sister of Yuri Svyatoslavich, the last sovereign ruler of the Principality of Smolensk.

[2] Tęgowski's main argument that Anna was from Smolensk rested on two documents from 1413 that mention a "Russian duke Basil" as Vytautas's brother-in-law.

[16] A 1390 complaint written by Vytautas against cousins Jogaila and Skirgaila mentioned that his wife's sister was married to his close associate Ivan Olshanski.