[en] Full text: The magnetically frustrated Kagomé structure found within Fe₄Si₂Sn₇O₁₆ (and select transition-metal doped series) has been thoroughly studied, particularly through diffraction, Mössbauer spectroscopy and magnetic susceptibility methods [1,2]. While it is understood that multiple exchange mechanisms are competing to produce this exotic magnetism, the exact nature and relative strengths of these competing mechanisms has yet to be explored. This work presents an investigation of the electronic and magnetic structures of select M'M''₃Si₂Sn₇O₁₆ (M' =Fe, Co; M' '=Fe, Mn) compounds, using hard and soft X-ray spectroscopy coupled with Density Functional Theory calculations. The first step of successfully reproducing these compounds’ band structures and ground state magnetic structures was followed by calculation of relative exchange energies, to determine dominant mechanisms electron density, and bonding analyses in an attempt to find the anisotropy responsible for the formation of the canted and frustrated magnetic supercell present in these compounds. These investigations have pointed towards a super-exchange mechanism as a potential driving force alongside direct exchange interactions (Fig.1). Additional work on replicating/predicting X-ray absorption spectra (NEXAFS) of these materials through computational methods will also be presented. (author)