House of York basis. Edward Plantagenet became Edward IV in 1461, thus merging the title of Duke of York with the crown. The most popular symbol of the house of York was the White Rose of York. The Yorkist rose is white in colour, because in Christian liturgical symbolism, white is the symbol of light, typifying innocence and purity, joy and glory. During the civil wars of the fifteenth century, the White Rose was the symbol of Yorkist forces opposed to the rival House of Lancaster. The red rose of Lancaster would be a later invention used to represent the House of Lancaster,
The Marshall House support the organization. The grounds have been restored to their Marshall-era appearance of the 1950s and include a large vegetable garden that was restorative as an antidote to the pressures Marshall felt as Army Chief of Staff. Katherine delighted in growing roses, and a restored rose garden features the types of roses she cultivated, including the "K.T. Marshall Rose." The Marshall House was declared a National Historic Landmark in 1996. The Marshall House The Marshall House (formerly Dodona Manor) is a National Historic Landmark and historic house museum at 217 Edwards Ferry Road in Leesburg, Virginia. It is owned by