John Forbes Kerry was born on December 11, 1943, at Fitzsimons Army Medical Center in Aurora, Colorado. He is the second of four children born to Richard John Kerry, a Foreign Service officer and lawyer, and Rosemary Forbes, a nurse and social activist. His father was raised Catholic (John's paternal grandparents were Austro-Hungarian Jewish immigrants who converted to Catholicism) and his mother was Episcopalian. He was raised with an elder sister Margaret, a younger sister Diana, and a younger brother Cameron. The children were raised in their father's Catholic faith, and John served as an altar boy.