We hear that Olympic bronze medal winning rower Giuseppe Lanzone had dinner, where else, but at the oar-themed bar the Tombs in Georgetown Friday. Also out and about this weekend were Attorney General Eric Holder and Michelle Obama's mother Marian Robinson who dined, separately, Saturday night at the Hamilton. Robinson had her meal with a mystery man. Also that night, both Holder and Robinson attended the Aretha Franklin concert at DAR Constitution Hall with first lady Michelle Obama.