Chapter 2, page 13

Tantz_Aerine on Feb. 27, 2012

In Greece, grandparents are respected as elders- if they don't forfeit their position by behavior or by weakness. 
There are many anecdotes about tough fighters that just stood at attention for their mothers or grandmothers, even before their entire regiment- or WITH their entire regiment.
Obviously Basil's grandma hasn't forfeited her position. ;)