4月30日，荷兰国王威廉－亚历山大（左）和王后马克西玛（右）步入阿姆斯特丹皇宫。当天，荷兰女王贝娅特丽克丝签署诏书正式退位，她的长子威廉－亚历山大继任成为荷兰国王。新华社发（里克·奈德斯蒂西特摄）
Dutch King Willem-Alexander (L) and his wife Maxima (R) step to the Church in Amsterdam to swear in, on April 30, 2013. Following the abdication of Queen Beatrix, the new King of the Netherlands Willem-Alexander was officially inaugurated on Tuesday. (Xinhua/Rick Nederstigt)