Jackman was born in Sydney, New South Wales, to Grace McNeil (née Greenwood) and Christopher John Jackman, a Cambridge-educated accountant. His parents were English and had come to Australia in 1967 as part of the "Ten Pound Poms" immigration. Thus, in addition to his Australian citizenship, Jackman holds British citizenship by virtue of being born to UK-born parents. One of his paternal great-grandfathers, Nicholas Isidor Bellas, was Greek, from the Ottoman Empire (now in Greece). His parents were devout Christians, having been converted by Evangelist Billy Graham after their marriage. Jackman has four older siblings and was the second of his parents' children to be born in Australia. He also has a younger half-sister, from his mother's remarriage. His parents divorced when he was eight, and Jackman remained in Australia with his father and two brothers, while his mother moved back to England with Jackman's two sisters. As a child, Jackman liked the outdoors, spending much time at the beach and on camping trips and school holidays all over Australia. He wanted to see the world, saying, "I used to spend nights looking at atlases. I decided I wanted to be a chef on a plane. Because I'd been on a plane and there was food on board, I presumed there was a chef. I thought that would be an ideal job. "