Bílá Lhota Castle is a classicist estate with Empire style elements, located in the village of Bílá Lhota within Olomoucký kraj, Czech Republic. This historical monument stands on the foothills of Zábřežské vrchoviny and has evolved significantly since its first mention in 1356. Originally a fortress, it transformed into a Renaissance castle and later underwent baroque modifications before attaining its current classicist form in the early 19th century. The estate is particularly notable for its arboretum established by Quid Riedl in the early 20th century, featuring over 300 species of trees.

The origins of Bílá Lhota Castle trace back to the late Middle Ages when it was first mentioned as part of an estate held by Zdislav z Řimic. Initially a fortress, its exact construction date is not documented, but historical records indicate that by 1437, a known structure existed under Ješek ze Lhoty's ownership. Over time, the site transitioned through various hands, reflecting broader political and social changes in Bohemia, which was part of the Holy Roman Empire during its initial construction and later came under Habsburg rule.

Architecturally, Bílá Lhota Castle has seen several transformations. The original fortress likely gave way to a new structure by the late Middle Ages. By the end of the 16th century, it had been transformed into a Renaissance castle. Subsequent baroque renovations in the 18th century significantly altered its appearance before it assumed its current classicist and Empire style architecture in the early 19th century.

Ownership of Bílá Lhota Castle has changed hands multiple times throughout history. After Zdislav z Řimic, notable owners included Jiří z Poděbrad, who transferred the estate to Karel z Vlašimi in 1464. Erazimus Bítovský ze Slavíkovic and his descendants likely constructed a new structure during their tenure. The castle later became associated with Mikuláš Kobylka z Kobylího and Jan Záviše Bítovský ze Slavíkovic, who oversaw its transformation into a Renaissance-style edifice in the late 16th century. Markvart Hochberg z Hennersdorfu purchased it in 1720 for 31,580 gold coins, followed by Jan Maxmilián Žižka. The Speil family owned it from 1792 to 1840, during which Conradin Kreutzer composed his opera "Nacht in Granada" while staying at the castle. Finally, the Riedl family held ownership until 1945.

Key events in Bílá Lhota Castle's history include its transformation into a Renaissance castle and later baroque modifications. The establishment of an arboretum by Quid Riedl in the early 20th century marked another significant development, turning the estate's park into a notable dendrological area with over 300 species of trees.

Today, Bílá Lhota Castle serves as a multifunctional site for the local community. The castle is now a single-story, four-winged building housing an obecní úřad (municipal office), post office, library, and health center. Its park, once part of the zámek's grounds, has been transformed into Arboretum Bílá Lhota, which was opened to the public in 1968 as a National Nature Monument. The arboretum features both domestic and rare European and exotic trees from regions such as North America, Japan, China, and Asia Minor.

Bílá Lhota Castle offers visitors a glimpse into its rich history through its architectural evolution and the diverse species within its arboretum. Its significance lies not only in its historical transformations but also in its current role as a community hub. Visitors are invited to explore this unique blend of cultural heritage and natural beauty, making it a worthwhile destination for those interested in both history and nature.