in her abdication speech, queen beatrix said wilhelm alexander was ready to become queen. the surprise announcement came just a few days before her 75th birthday. already is generating talk of a royal domino affect with other europeans asking how long before their monarchs it way to future generations. the official dutch abdication will take place on april 30 or queen's day. from then on, kings they will be held on wilhelm alexander's birthday a few days before, a celebration of the first king to rule the kingdom of the netherlands in more than a century. bbc news, the hague. >> let's talk some more about this. kate williams is a royal historian angeles be in the studio. nice to see you. this is the best way of doing things. >> there is a precedent. her mother advocated before her, her grandmother also advocated and prince wilhelm, much younger, 45. we have quite a silver market. we of queen elizabeth ii, 86, the king of norway, 75, the king of spain, 75, queen of denmark, 73 and the tricks herself is coming up to 75. >> on thursday. >> her birthday. >> generally when you