The LEGO Duplo Princess Castle theme, active in 2005, featured sets designed to appeal to young children with a fairytale and royal theme. Key sets include "Princess' Palace" (4820), which features a large, colorful castle with turrets, a princess figure, and various accessories; "Princess Royal Stables" (4828), which includes a stable, horse, princess figure, and grooming tools; and "Princess' Horse and Carriage" (4821), which comes with a princess figure, horse, and a carriage. These sets were designed to encourage imaginative play centered around royal and fairytale scenarios.
2005 LEGO Sets
2005 marked the formal introduction of LEGO City, succeeding Town as LEGO’s modern urban theme. Star Wars minifigures transitioned from classic yellow to light nougat skin tones, aligning with other licensed lines. New themes included Dino Attack (Dino 2010 in Europe) and Vikings, while LEGO Star Wars: The Video Game debuted, establishing the long-running TT Games franchise. The year also celebrated 50 years of the LEGO System and growing digital expansion.