"To sum up: your father, whom you love, dies, you are his heir, you come back to find that hardly was the corpse cold before his young brother popped onto his throne and into his sheets, thereby offending both legal and natural practice. Now why exactly are you behaving in this extraordinary manner? (It is worth noting that the Danish monarchy only became hereditary in the 17th century. Before this time, the crown was elective so Hamlet may not have been the elected heir.)"
January 1, 1970
https://en.wikiquote.org/wiki/Rosencrantz_%26_Guildenstern_Are_Dead_(film)