|Faith of the Seven
Rollo was reknowned for his learning.
After King Jaehaerys I Targaryen wed his sister, Alysanne, Jaehaerys sent seven preachers to walk the realm and win the small folk over to the marriage, not with swords, but with words. Septon Rollo was among these seven. They traveled the realm alone, walking from village to village, telling the smallfolk of Jaehaerys's wisdom and Alysanne's kindness. When challenged on the issue of incest, the seven would say the Valyrians mounted dragons and thus were not like other men, and as such, an exception had to be made.