Michał Bergson

Michał Bergson (Bergsohn) or Michel Bergson was a Warsaw-born Polish composer and pianist, promoter of Chopin, son of Gabriel Bereksohn, grandson of Ber Sonnenberg and great-grandson of Zbytkower. Two of his children were an influential French philosopher Henri-Louis Bergson and an artist and occultist Moina Mathers, wife of Samuel Liddell MacGregor Mathers.