How many years
First published 1977 · English · 381 pages
- Love and romance
- Family saga
- Biography and memoir

A prose work, probably the English edition of Yourcenar's family memoir known in French as Quoi? L'Éternité, or a related volume of her autobiographical writing. It follows her ancestors and the world they lived in, moving across generations and places with an eye for historical detail. The memoir is as much about time and memory as about one family, and it is written with her usual calm, searching intelligence.