The industrial history of the family dates back to the early years of 19th century.
Dawid Rosenblatt, a merchant from a Hasidic family from Przedborze arrived in Lodz in 1838 r. and settled in one of the streets of the Old Market Square.
In 1840, Dawid established a prosperous goods and yarn warehouse in the Jewish district of the Old Town in Lodz. In 1841 his son name Shay was born who having grown mature followed in his father's footsteps dealing with trading activity. In 1858, barely 17, he established a small wool mill situated in Piotrkowska 65. He was successful enough to compete with the "wool king\”, Juliusz Heinzel; however, strong competition made him shift his specialisation to cotton in 1873. He started with the establishment of a cotton mill. A few years later he established a cotton manufacture with the surface area of 7.6 ha situated in Karola 36 (current intersection of Żwirki and Gdańska streets). The business thrived and at the end of the 1880s the factory had a fine-yard mill, yarn waste mill, mechanical mill and employed 260 workers; by 1911 the mill employed 3010 workers.
Shay Rosenblatt was the director of the Credit Society in Lodz, an honourable president of the Lodz Jewish Charity Society, an initiator of the establishment of the Crafts School "Talmud Tora\”
Member of Jewish Community and the Synagogue Committee, he also performed a number of other social and honourable functions. Shay Rozenblatt collected paintings of Polish painters such as Matejko, Czechowicz, Gautier, or Trębacz. He died on 30 XII 1921.
The Shay Rozenblat family tomb still remains in the Jewish cemetery; it is situated on the right of the main gate next to the main avenue. A vandal or a thief has removed all the letters of the inscription leaving marks on the black stone, the visitors pass unaware of the fact that the models of Henryk Sienkiwicz's "Promised Land" lie buried in the derelict tomb.
Article - '¦wiat', 16 December 1922
The main building of the Rosenblatt mill nationalised by the government of the People's Republic of Poland in 1953; current domicile of Lodz Technical University
Jakub Rosenblatt (1861 – 1921) owner of the mill (founded in the 19th century by his father Jakub Dawid Rosenblatt). In the picture standing with his daughter Maryla, who later obtained a Ph.D. degree in medicine (died in 1942 in Warsaw at the age of 35).
Felicja Rosenblatt, maiden name Mayzner, born in Warsaw in 1867, died in Florence in 1927, wife of Jakub. They polonized the family name to Rozenblat before 1900.
Lodz, ul. Piotrkowska 65; 1908. Misia, Mietek, Tadeusz, Jerzy and Maryla on the backyard stairs of the tenement house.
Lodz 1908. Jerzy with his brothers and sisters: Maryla, Mietek (murdered in Auschwitz in 1944), Michalina (Misia, who died in Rome in 1970s) and Tadeusz (murdered in Auschwitz in 1944)
1938, Lodz, carnival. Borthers: Mietek, Tadeusz and Jerzy. The family spent the following carnivals in the Lodz ghetto …
…Jerzy was sent to Siberia, he was the only survivor.
Besides memories, the family left few photos and some belongings. Michalina and Jerzy survived the war. Their siblings and relatives were murdered in Auschwitz, and in the Lodz and Warsaw Ghettoes. A Foundation was established to commemorate the deceased members of the Rozenblat family.