I've been rereading - The Summer Queen, The Winter Crown and The Autumn Throne, by Elizabeth Chadwick. 3 books about the lifetime of Eleanor of Aquitaine, History's most powerful woman..... fascinating to read.
It is historically recorded that she crossed the alps in mid-winter, on horseback, and at times on foot because of deep snow at the age of 65. I wonder how many people would manage that, nowadays?