4 surviving letters between Boniface and Respecta, Abbess, spanning 720-735 AD.
Let it be known to you, my gracious father, that I give thanks without ceasing to Almighty God because, as I learned...
Let it be known to you, dear sister, that in regard to the matter on which you have sought my advice I cannot...
To his dear sister, Abbess Eadburga, long united to him by spiritual ties, Boniface, a servant of the servants of...
To the most reverend and beloved sister, Abbess Eadburga, Boniface, least of the servants of God, loving greetings.