Bertrum is an ancient Germanic given name, derived from the Old High German words "berht" meaning bright or famous, and "rūm" meaning protection or fame. It was a popular name among the nobility during the Middle Ages, particularly in Germany and England. The name Bertrum is believed to have been introduced into Britain by Norman settlers after the Norman Conquest in 1066. Despite its historical significance, Bertrum is not widely used as a given name today, making it quite rare and distinctive.
"The name Bertrum experienced a brief peak in popularity between 1915 and 1927 with consistently higher birth numbers, ranging from 7 to 12 births annually. However, its usage declined thereafter, fluctuating between 5 and 7 births per year until the most recent recorded data point of 5 births in 1993."