Three members of a San Antonio family that includes one-time members of Fiesta royalty pleaded guilty Monday to federal charges related to rigging bids for U.S. Army contracts, according to the Justice Department. The feds indicted Kenneth “Ken” Flores, 50, his brother Christopher Flores, 54, and mother Irma Flores, 74, in April on allegations they conspired to defraud the United States by fixing contracts and awards for janitorial work at Army medical facilities. The indictment accused them of paying bribes to a pair of federal officials so they cut competitors out of the bidding process.