What fruits are pomelos related to?
Pomelo
The pomelo is one of the original citrus species from which the rest of cultivated citrus hybridized, (others being citron, mandarin, and to a lesser extent, papedas and kumquat). In particular, the common orange and the grapefruit are presumed to be naturally occurring hybrids between the pomelo and the mandarin, with the pomelo providing the larger size and greater firmness.