Thank you, in France most pomelos are from China , they appear on the market in early November.
The white flesh variety is labeled Honey, but sometime there are also deep red fruits.
Rarely in white flesh fruits are large seeds, its seedlings are very sensitive to the frost.
In November 2022 I found a dozen of seeds in the red one and got several seedlings with varying leave shape pattern.
Most of them died after forced artificial freezing at 8°C for 3 hours but one was not damaged at all.
Probably a hybrid with some hardy rootstock