So, when was the last time that the Monarch Regnant of the UK (or, to go further back, England) was the grandchild of a couple without a title?
George, in the fullness of time, will become King. One pair of his grandparents are the Middletons. Who may or may not end up with a title but they’ve not got one at the moment and can therefore be called commoners.
So, when was the last time this was true?
Will’s gps were Earl Spencer etc pm the non-Royal side.
Charlie’s Princes etc of Denmark and or Greece?
Brenda’s Earl of Strathmore
George VI Mary of Teck (ie, a princess of the German sort)
George V Danish royal family
Edward VII Dukes of Saxe Coburg
Vicki Saxe Coburgs again
William IV and G IV both Duke Mecklenburg
And so on and on back. When was the last time a pair of grandparents were commoners?
I’m going to run with Edward VI myself (Jane Seymour’s parents were a knight and his wife) unless anyone can show better?