  A classical formulation of the quantum multichromophoric theory of resonance
energy transfer is developed on the basis of classical electrodynamics. The
theory allows for the identification of a variety of processes of different
order-in-the-interactions that contribute to the energy transfer in molecular
aggregates with intra-coupling in donors and acceptor chromophores. Enhanced
rates in multichromophoric resonance energy transfer are shown to be well
described by this theory. Specifically, in a coupling configuration between
N_{\mathrm{A}}$ acceptors and $N_{\mathrm{D}}$ donors, the theory correctly
predicts an enhancement of the energy transfer rate dependent on the total
number of donor-acceptor pairs. As an example, the theory, applied to the
transfer rate in LH~II, gives results in excellent agreement with experiment.
Finally, it is explicitly shown that as long as linear response theory holds,
the classical multichromophoric theory formally coincides with the quantum
formulation.
