Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Marcus Joseph Sieff, Baron Sieff of Brimpton OBE (2 July 1913 23 February 2001) was a Jewish British businessman, and chairman of his family company, the retailler Marks & Spencer from 1972 to 1982. He was also a leading figure in UK Zionism. Sieff was born in Didsbury, Manchester, the second son of Israel Sieff. Starting work for the family company in Hammersmith, London in 1935, Marcus first visited Palestine in 1939.