For those who might be interested (and haven't read it yet), there's a IMHO really good novel length fanfic on AO3 called, "Cordelia's Family." It's told almost entirely via correspondence (a few, but not many from Cordelia)by the next generation(s). It includes Gregor's kids. It goes on for about 40 years into their lives. CW: as you can imagine, covering that length of time, it includes major character deaths. The intro to it says:
Cordelia's Family by FanFicReader2016 Summary: For the prompt: How Cordelia's daughter's affect [sic] Barrayar or Escobar or anywhere, really.
To know Cordelia's daughters, you must also know her family. All of them, from her brother to the grandchildren and great-grandchildren yet to come.
no subject
Cordelia's Family
by FanFicReader2016
Summary: For the prompt: How Cordelia's daughter's affect [sic] Barrayar or Escobar or anywhere, really.
To know Cordelia's daughters, you must also know her family. All of them, from her brother to the grandchildren and great-grandchildren yet to come.
Link: https://archiveofourown.org/works/14943969/chapters/34625685