Canon Background
https://awoiaf.westeros.org/index.php/Alerie_Tyrell

In-Campaign
During the festivities of the wedding of King Robert and Cersei Lannister Alerie was in the capital’s central square enjoying the bardic festival. After hearing the minstrel Dolins perform she was so impressed that she approached the older man and intimated that if he were to come to Highgarden to play that she would make the trip worthwhile. Fearing that she may be too subtle, she informed Dolins that Highgarden has the most comfortable bed in Westeros.