User:Brilliant brunette222222/New sandbox5

Mathias Winteler
Born(1878-11-10)November 10, 1878
DiedFebruary 1, 1934(1934-02-01) (aged 55)
Spouse
(m. 1906)
Children2

Mathias Winteler (10 November 1878 - 1 February 1934) was the fifth child, and second son, of Swiss professor and linguist Jost Winteler and his wife, Pauline. He was also a younger brother of Marie Winteler, physicist Albert Einstein's first girlfriend.