Illyrio Mopatis's first wife
From A Wiki of Ice and Fire
|Book||A Dance with Dragons (mentioned)|
The first wife of Magister Illyrio Mopatis of Pentos was a cousin of the Prince of Pentos.
With the aid of Varys, Illyrio Mopatis reached a position where the daughter of a Magister was willing to marry him.
Illyrio upset the cousin of his first wife, the Prince of Pentos, after he married Serra, a former bedslave he had bought and come to love. The Prince of Pentos closed the palace to Illyrio forever.
A Dance with Dragons
As they travel through Andalos, Illyrio tells Tyrion of his first and second wives.