Cerelle Lannister (daughter of Jason)
From A Wiki of Ice and Fire
|Born||In 103–130 AC|
|Book||Fire & Blood (mentioned)|
After the death of Queen Jaehaera Targaryen in 133 AC, Lady Johanna set aside her war with the ironmen long enough to write the Hand that her daughters Cerelle and Tyshara were maidens of noble birth and marriageable age.