Dependence of the relation between M_{*, halo(r < 2 Re)} and M_*, Ex1 on the dominance of the most massive merger event. Here we show results for TNG50 in subsamples g6 and g7, color coded by the ratio between the ex situ stellar mass brought in by the most massive merger and the total ex situ stellar mass: M_*, Ex1/M_*, ExSitu. The larger this ratio is, the larger the contribution of the most massive merger to the formation of the hot inner stellar halo.