This article examines socioeconomic mobility across three generations in Sweden from 1815 and until 2011. Using longitudinal micro-level data from the Scanian Economic-Demographic Database (SEDD), we examine the transmission of socio-economic status along three different dimensions; social class (HISCLASS), occupational status (HISCAM), and earnings. We demonstrate an association between grandfathers' class or occupational status and the outcome of grandsons, when controlling for the association between fathers and sons. The associations remain stable over time and are stronger for paternal grandfathers than for maternal. For earnings, we find no grandparental association.