Yes, because you are talking about someones name
why did they use a poppy
do you use a capital letter for the word knighted
Common step-grandpa names that grandchildren may use to address their step-grandfather include Grandpa, Papa, Pops, Gramps, and Granddad. Some unique names could be Poppy, Grandpappy, Grampy, or Grandpops.
Grandfather is an English word so they would use that. Other English terms are grand dad, which it the most usual, and very rarely, grand pa.
i have composed a letter to my grandfather and i have composed a choir.
You use capital letters only if it is a place. Also you use it to capitalize your first word of a sentence.
My great grandfather lived a very 'western' way of life.
no
Use a capital letter for the word "grandpa" when it is used in the form of a name. ie: "Grandpa, can I help?" ie: Grandpa George wanted his grandson to learn to fish.
for the word summer you use its capital s if in a title or start of sentence
yes
I grieve the loss of my grandfather. My Grieve (an old automobile) broke down.