Beatričė's star, which shone very brightly, was born on 28 November 1911 in the village of Stolaukėlio, Vilkaviškis district. Her parents - Vanda and Andrius - came from the noble noble family of Grincevičius, whose history dates back to the 14th century, when the founder of the family, Vilkišius, received a coat of arms and the title of a baron from Prince Kęstutis for his merits. Beatrice's mother, Vanda Grincevičiūtė-Grincevičienė, represented the Grincevičius family, which in the 18th century established itself in the Lithuanian lands of the Grand Duchy of Lithuania (hereinafter - the Grand Duchy of Lithuania), in the Šakiai district, Ilguva. The trace of the former family's life has been preserved to this day - the Ilguva manor.
The father, Andrius Grincevičius, was from the second branch of the Grincevičius family, which spread to the lands of the GDL - Smolensk (present-day Russian territory). Vanda and Andrius's marriage is shrouded in a confusing love story, full of unspoken rules of noble life, and yet unhappy... Anyway, they had six children: Henrik (1901), Ludvik (1904), Vaitiekas (1910), Beatričė (1911), Stasys (1915) and Kristina (1918). When the war broke out, the family was constantly changing their place of residence, as Andrius was hiding from compulsory mobilisation. Unfortunately, while hiding from the war, he was found... by typhus, which took his life in 1917, before he could see the birth of his youngest child Kristina. Alone with her six children, mother Vanda settled in her birthplace, Ilguva Manor, which at that time already belonged to Emil Mlynarski, the husband of her mother's sister Ona (Beatrice's aunt). Beatričė's childhood passes here, full of memories of the cultural life in Ilguva, which fostered a nineteenth-century tradition of parlour music, united by sincere human interaction. It was visited on several occasions by such famous personalities as the painter F. Ruščicas, the writer J. Herbačiauskas, the composer S. Šimkus and the world-famous pianist A. Rubinšteinas (who, incidentally, was the husband of Beatrice's cousin, Anelė Mlynarskytė).
In a masculine environment, little Beatrice's inclination for music spread freely, and soon her uncle Emil Mlynarskis noticed the girl's talent and did not hesitate to sponsor her musical studies in Warsaw. In 1921, the clear-voiced girl began her studies at the Warsaw School for the Blind, and in 1924 she continued her studies at the Warsaw Institute for the Blind and Mute. Here Beatrice was introduced to the violin, but it was the sounds of the piano that stirred her soul more, and she later switched to the piano. At the Institute, in addition to learning to play, the young musician sang in the choir, the director of which, Prof. Z. Bilinskis, who had already noticed Beatričė's exceptional voice timbre at that time, assigned her solo parts. In 1928, after graduating from six classes of the institute, the girl returned to Lithuania. In 1931, she starts working as a teacher at the Institute for the Blind in Kaunas and tries to continue her musical studies by enrolling at the Conservatoire led by Juozas Gruodis. Unfortunately, Gruodis himself prevents the girl from studying, fearing that she has no voice. Many years later, the famous composer admitted he was wrong and personally thanked Beatrice for her ability to interpret his own works musically. Well, when the famous composer did not believe in her talent, the young singer did not give up, and in 1934 she began to study singing in the private People's Conservatoire under the direction of Elena Liaumenskienė in the class of the singer Antanina Binkevičiūtė. Her studies culminated in her first concert on 24 November 1937. Beatrice's debut in 1937 is embellished with an interesting story, which allowed Beatrice to meet Balis Dvarionas, whose wonderful song "Žvaigždutė" was specially composed for Beatrice's voice. 6 March 1943. On 6 March 2018, Beatrice gave her first recital at the Kaunas Conservatory, which brought her recognition. In 1944, she became a soloist at the Lithuanian State Philharmonic (Kaunas section), where she worked until 1946. Grincevičiūtė moved to Vilnius and began working as a soloist for Lithuanian Radio. From 1966 to 1984 Beatričė worked on the commission of the Radio Committee, where she selected music recordings, and from 1974 until the end of her life she worked as an illustrator of musical works at the M.K. Čiurlionis School of Arts.
Beatričė Grincevičiūtė is a promoter of chamber singing, whose active musical activity could not go unnoticed. In 1954 she was awarded the title of Merited Artist of the Lithuanian SSR, and in 1971 - the title of People's Artist of the Republic. She regularly performed with the composer B. Dvarionas, the actor L. Noreika, the pianist H. Znaidzilauskaite and the singer V. Mikštaite. Beatričė's repertoire included about 1000 pieces, ranging from folk to original songs by classical composers. Beatričė Grincevičiūtė, who shone tirelessly, died in Vilnius on 17 November 1988. She is always remembered by her friends as always wearing a beautiful scarf, with her warming smile inviting everyone to come and visit her in her warm chestnut apartment, in her kitchenette, to eat her warm soup and her muffins, just out of the oven. Beatričė, a noblewoman of noble birth and aunt of music, has remained alive in people's memories, and the warmth she radiated still warms every passer-by who stops by her cosy apartment on A. Vienuolio Street.