sentences:  The Queen regnant with the most children was Queen Victoria who had 9 children of whom all reached adulthood.The Queen regnant with the most pregnancies was Anne, who had 17, but only 5 resulted in live-born children (two of whom survived past the age of one, one reached the age of two, but all of them died before their mother).At 17, Edward III is the youngest King to father a child, during his mother’s regency.