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Decays of baryon resonances in the second and the third resonance region intoN pi0 pi0 are studied by photoproduction of two neutral pions off protons.Partial decay widths of N* and Delta* resonances decaying into Delta(1232) pi,N(\pi\pi)_{S}, N(1440)P_{11} pi, and N(1520)D_{13} pi are determined in apartial wave analysis of this data, and data from other reactions. Severalpartial decay widths were not known before. Interesting decay patterns areobserved which are not even qualitatively reproduced by quark modelcalculations. In the second resonance region, decays into Delta(1232) pidominate clearly. The N(\pi\pi)_{S}-wave provides a significant contribution tothe cross section, especially in the third resonance region. The P_{13}(1720)properties found here are at clear variance to PDG values.

N* and Delta* decays into N pi0 pi0