I like
Rosamund, but it holds nowhere near the appeal for me that
Rosaline (line; not leen) does. I would consider using
Rosaline, but would be happy to see
Rosamund on someone else’s child. Your comments about horses have me chucklingly saying Horsemund in my head now.
I’ll choose the three combos you’ve listed I like best:
1.
Rosamund Frances2.
Rosamund Sibylla3.
Rosamund Virginia
No
Rosamund Lavinia today? That would have made my top three.