History of HD 207496. Left panel: plot showing the modelled rotational history from the Johnstone et al. (2021) model for a 0.8 M_⊙ star (black line), with the 2σ spread based on the distribution of initial rotation periods (dashed black lines). The measured period and age of HD 207496 is plotted as a red circle, and its modelled rotational history as a blue line, with the uncertainty in the history shown as a shaded blue region, as described in Sect. 5.2. Right panel: plot showing the corresponding XUV luminosity tracks for the models on the left-hand side panel. The expected XUV luminosity for HD 207496 b, based on the rotation-activity relation, is shown as a red square.