First, his seven year old son died. Kepler wrote to a friend that this death was particularly hard to bear because the child reminded him so much of himself at that age.
Una, ang kanyang pitong taong gulang na anak na namatay. Kepler wrote sa isang kaibigan na ito kamatayan ay mahirap lalo na sa bear dahil ang bata reminded kanya kaya marami ng kanyang sarili at na ang edad.