We study the intracluster light (ICL) and intracluster globular clusters
(ICGCs) in the nearby Perseus galaxy cluster using Euclid's EROs. By
modelling the isophotal and iso-density contours, we mapped the
distributions and properties of the ICL and ICGCs out to radii of
200-600 kpc (up to ~1/3 of the virial radius) from the brightest cluster
galaxy (BCG). We find that the central 500 kpc hosts 70000$\pm$2800 GCs
and $1.7\times10^{12}$ L$_\odot$ of diffuse light from the BCG+ICL in
the near-infrared H$_E$. This accounts for 38$\pm$6% of the cluster's
total stellar luminosity within this radius. The ICL and ICGCs share a
coherent spatial distribution, suggesting a common origin or that a
common potential governs their distribution. Their contours on the
largest scales (>200 kpc) are offset from the BCG's core westwards by
60 kpc towards several luminous cluster galaxies. This offset is
opposite to the displacement observed in the gaseous intracluster
medium. The radial surface brightness profile of the BCG+ICL is best
described by a double Sérsic model, with 68$\pm$4% of the H$_E$
light in the extended, outer component. The transition between these
components occurs at ~60 kpc, beyond which the isophotes become
increasingly elliptical and off-centred. The radial ICGC number density
profile closely follows the BCG+ICL profile only beyond this 60 kpc
radius, where we find an average of 60-80 GCs per $10^9$ M$_\odot$ of
diffuse stellar mass. The BCG+ICL colour becomes increasingly blue with
radius, consistent with the stellar populations in the ICL having
subsolar metallicities [Fe/H] ~ -0.6 to -1.0. The colour of the ICL, and
the specific frequency and luminosity function of the ICGCs suggest that
the ICL+ICGCs were tidally stripped from the outskirts of massive
satellites with masses of a few $\times10^{10}$ M$_\odot$, with an
increasing contribution from dwarf galaxies at large radii.