Nash was a fellow-student (and billiard-player) and continuing artistic colleague; Graves married his sister. William Nicholson was his father, Pryde his uncle. Hepworth was the second of his three wives, their relationship central to the internationalisation of British abstraction. They were encouraged by Hélion, who invited them to join his group Abstraction-Création, and while in France met Mondrian and other significant artists. Mondrian, along with fellow-exiles Moholy-Nagy, Breuer and Gabo, became a neighbour as well as friend in London. Gabo edited a magazine with him and eventually followed Hepworth and him to Cornwall.