160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! LOS ANGELES – Mayor Antonio Villaraigosa will announce this morning the single largest donation ever made by individuals to Los Angeles schools this morning in his latest effort to raise funds for a plan to control a cluster of them. Real estate developers Richard and Melanie Lundquist will donate $50 million over 10 years to the Partnership for Los Angles Schools, the nonprofit organization that will allow mayoral oversight of two low-performing high schools and the middle and elementary campuses that feed into them. The money donated by the owners of Continental Development Corp. may also be used at other schools, according to Villaraigosa aides. Villaraigosa, LAUSD Superintendent David Brewer, school board President Monica Garcia and the donors will make the announcement at Gratts Elementary School, downtown at 10 a.m.