Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Andrzej Mariusz Trautman (born January 4, 1933) is a leading mathematical physicist who has made important contributions to classical gravitation in general and to general relativity in particular. Trautman was born in Warsaw, Poland into an artistic family. His father, Mieczys aw, was a painter and taught drawing at a secondary school in Warsaw. His mother, Eliza Trautman (née André), was French, though she was born in Spain, where her father, Marius André, was working as a French consular officer. His schooling, at the elementary level, was interrupted by the Warsaw Uprising of 1944.