Sister Ida is the Canoness of the Order of the Blue Thorns . While she is not the head of the Order, she does command them at war and in battle, leading to her moniker, the 'Queen of Thorns'.
The amazing imagery displayed in World Anvil is graciously vested by
His Titanship Christopher Dravus of Ironrise Games,
Our Revered Deity Basic Dragon / Rin &
His Majesty Caeora