Orbital evolution of the synthetic family (black circles) compared to the orbital distribution of the observed members of the actual Euphrosyne family (blue crosses) in the proper (a_p, e_p) plane. Dotted vertical lines are centers of several two-body and three-body mean-motion resonances located in the region of interest. The red dashed curve shows the approximate position of the ν₆ secular resonance (adapted from Carruba et al. 2014; Milani et al. 2019). Individual snapshots, labeled with a corresponding integration time t, map the progress of our N-body simulation. They depict a compact family, the “best-fit” solution, and a dynamically dispersed family.