The paper compares the prevalence and development of consanguineous marriages between Turkish migrants in Western Europe and stayers from the same regions of origin in Turkey. Analyses draw from three-generational family data of the 2000 Families study. Findings suggest a decline of kin marriage over generations and time in both groups, but a higher prevalence of kin marriage among migrants. Parental impact was influential, but effects of transmission were lower among migrants. Kin marriage was strongly linked with cross-border partner choice. The results support previous findings and indicate the specific effect of migration on seemingly traditional patterns of marriage. [ABSTRACT FROM AUTHOR]