The Spanish Conquest home in Madrid of antiques dealer and interior designer Lorenzo Castillo featured in Elle Decor.

In the sitting room, a steel-and-ostrich-egg mirror hangs above a sofa upholstered in a 1960s David Hicks fabric; the Jacob Frères armchair is covered in a Rubelli velvet, and the cocktail table is from the ’70s. The artworks include paintings by Xavier Vilató, bottom left, and José María Yturralde, center, and a Josep Maria Subirachs engraving and Miguel Macaya painting, right.

The drawing room.

An 18th-century rug covers a table in the entrance hall; the bench is in the Régence style, the desk is by Marc du Plantier, and 18th-century engravings fill the walls.

The lux red guest bedroom

…the guest bedroom, a headboard upholstered in a Valentino velvet, a Louis XV–style bench, and 17th- and 18th-century Spanish mirrors; the paintings are by ­Yturralde,…

The Spanish styled master bedroom:

The master bedroom includes a tapestry by Rubens, a 17th-century octagonal mirror, and a 19th-century neo-Gothic dressing table.

A 1950s Italian sink in the master bath; the large mirror is by Devon & Devon, and the walls are painted in Farrow & Ball’s Babouche.

A Louis XVI marble-top table and 1970s Italian chairs in the kitchen; the lacquer cabinetry is custom made, and the walls are painted in Farrow & Ball’s Lulworth Blue.

In the courtyard, 1960s Jansen daybeds are upholstered in a Madeleine Castaing fabric, the cast of a Michelangelo sculpture is from a Paris flea market, and the Gothic Revival doors are 19th-century Spanish.