Faile mentions Mashera as an example of an Aes Sedai who would do anything the White Tower told her to (COS: 6). Mashera bore seven children for a man she loathed (COS: 6).
"Is there anything an Aes Sedai would not do, or put up with, if the White Tower told her to? I have studied my history and I was taught to read between the lines. Mashera Donavelle bore seven children for a man she loathed, whatever the stories say" ~Faile to Perrin (COS: 6).