We use Danish wealth records from three decades to characterise wealth inequality in childhood, where the main source of wealth is transfers. Wealth holdings are small in childhood but they have strong predictive power for future wealth in adulthood. At age 18, asset holdings of children are more informative than parental wealth in predicting wealth of children when they are in their 40s. We investigate why and rule out that childhood wealth in itself can accumulate enough to explain later wealth inequality. Instead, childhood wealth seems to proxy for intergenerational correlation in savings behaviour and additional transfers from parents. 2 Charles and Hurst (2003) provide estimates of intergenerational wealth mobility for the US using the PSID survey data. They review a few older studies of intergenerational wealth mobility. Recent studies on intergenerational wealth mobility include Black et al. (2015) and Fagereng et al. (2015) who use data for adoptees to study the role of nature versus nature in explaining the intergenerational correlation in wealth. Clark and Cummins (2014) and Adermon et al. (2015) contribute to the growing literature on multigenerational mobility (Solon, 2015) by estimating wealth mobility across multiple generations for the UK and Sweden, respectively.12 The non-linearity at the bottom of the parental distribution probably reflects that the wealth levels of these parents are a bad proxy for their 'true' types. Large negative wealth may reflect involvement in risky investment projects that either have gone wrong or have not paid off yet. Consistent with this hypothesis, we find that self-employed are largely overrepresented in the bottom of the distribution. Additional Supporting Information may be found in the online version of this article: Data S1.