15 Now that I have come to the conclusion of my letter I recall my metaphor of the four-horse team, and recollect that Blæsilla would have made a fifth had she been spared to share your resolve. I had almost forgotten to mention her, the first of you all to go to meet the Lord. You who once were five I now see to be two and three. Blæsilla and her sister Paulina rest in sweet sleep: you with the two others on either side of you will fly upward to Christ more easily.
Source: Letters (New Advent)