Near the end of his life, Frederick grew increasingly solitary. His circle of close friends at Sanssouci gradually died off with few replacements, and Frederick became increasingly critical and arbitrary, to the frustration of the civil service and officer corps. Frederick was immensely popular among the Prussian people due to his enlightened reforms and military glory; the citizens of Berlin always cheered him when he returned from military or administrative reviews. Over time, he was nicknamed ( (The Old Fritz) by the Prussian people, and name became part of his legacy. However, Frederick evinced little pleasure from his popularity with the common people, preferring instead the company of his pet Italian greyhounds, whom he referred to as his "marquises de Pompadour" as a jibe at the French royal mistress. Even in his late 60s and early 70s when he was increasingly crippled by asthma, gout and other ailments, he rose before dawn, drank six to eight cups of coffee a day, "laced with mustard and peppercorns", and attended to state business with characteristic tenacity.