Two Sonoma County residents have been sentenced for setting a series of wildfires last summer, the Sonoma County District Attorney’s Office announced today.Robert Pringle, 19, and Crystal Dunigan, 20, were suspected of starting 13 fires throughout the county, including areas of Mark West Springs Road, the Windsor Golf Course and Sonoma County Airport.The majority of the fires were lit in the brush next to the roadway, District Attorney Stephan Passalacqua said.Dunigan personally lit four fires and drove Pringle, her former boyfriend, to the other locations where fires were lit, Passalacqua said.Pringle also lit one fire near his home that came with 30 yards of his neighbor’s residence, Passalacqua said. Pringle and Dunigan also encouraged two minor boys to light fires, Passalacqua said.Detectives searched both defendants’ homes and found pictures on Dunigan’s camera of one wildfire, Passalacqua said.Pringle pleaded no contest to six counts of arson and one count of criminal solicitation of a minor and was sentenced to seven years in prison on July 1.Dunigan pleaded no contest to five counts of arson and one count of solicitation of a minor. Judge Kenneth Gnoss considered Dunigan’s lack of a criminal record and her age and sentenced her to six months in the county jail and probation.He also ordered her to pay more than $15,000 restitution to the Healdsburg, Windsor and Forestville fire departments and the Rincon Valley Fire District, Passalacqua said. “These defendants not only destroyed and tarnished our beautiful landscape, but put at risk the lives of firefighters and neighbors in the community. We are fortunate no one was injured,” Passalacqua said.