G cover One house, two histories in Medford Years ago, a museum housed in a historic estate focused on its wealthy loyalist founder. Now it’s being recognized for bringing to life the history of slavery in Massachusetts. ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Suzanne Kreiter/Globe staff The Royall House (above left) and Slave Quarters (rear) in Medford, was built by Isaac Royall, a trader in rum, sugar, and slaves. Suzanne Kreiter/Globe staff The grand bedroom at the Royall House and Slave Quarters. Suzanne Kreiter/Globe staff A slave sleeping area. Suzanne Kreiter/Globe staff The kitchen fireplace. Suzanne Kreiter/Globe staff Penny Outlaw, co-president of the historic house and museum, and Tom Lincoln, the museum’s executive director. Suzanne Kreiter/Globe staff This is one of Royall House’s two facades: the front faced east and the Mystic River and visitors arrived off the river, the other faced west and was approached by carriage.