Ollenstein Yazep (Jasep) (June 4, 1901, Riga – 1941?) - lawyer

Yazep Ollenstein was born in the family of a merchant, formerly from Panevėžys. His father ‘s name was Wulf, his mother’s name was Sara. In1909–1915 he studied at the Riga Gymnasium named after N. Rivosh. In Autumn 1915 he Moved to Moscow, where he studied at the P. Sheymin Gymnasium.

From 1918 Yazep Ollenstein studied law at Moscow University. In the end of 1920 he returned to Riga. In 1921 he graduated from the V. Blum Secondary School in Riga and continued law studies at the University of Latvia (LU), he graduated in 1925.

Yazep Ollenstein was Chairman of the Jewish Student Mutual Aid Fund. During his studies, he worked as secretary in the office of attorney P. Tanin. Initially a Lithuanian citizen, he later acquired Latvian citizenship.

From September 2, 1925 he was an assistant to attorney G. Rubinstein in Riga. From January 17, 1934 - attorney at law in Riga.

He was Secretary and board member of the Jewish Society of LU and Riga Polytechnic Institute (RPI).

During Soviet Occupation, from January 2, 1941: Lawyer at the Riga 6th Legal Consultation.

Yazep Ollenstein died in Riga during the German occupation.

Family: Married Leontina Tankeli (born 1904; died during the German occupation).