  Jets of energetic particles, as seen in FR type-I and FR type-II sources,
ejected from the center of Radio-Loud AGN affect the sources surrounding
intracluster medium/intergalactic medium. Placing constraints on the age of
such sources is important in order to measure the jet powers and determine the
effects on feedback. To evaluate the age of these sources using spectral age
models, we require high-resolution multi-wavelength data. The new sensitive and
high-resolution MIGHTEE survey of the XMM-LSS field along with data from the
Low Frequency Array (LOFAR) and the Giant Metrewave Radio Telescope (GMRT)
provide data taken at different frequencies with similar resolution, which
enables us to determine the spectral age distribution for radio loud AGN in the
survey field. In this study we present a sample of 28 radio galaxies with their
best fitting spectral age distribution analyzed using the Jaffe-Perola (JP)
model on a pixel-by-pixel basis. Fits are generally good and objects in our
sample show maximum ages within the range of 2.8 Myr to 115 Myr with a median
of 8.71 Myr. High-resolution maps over a range of frequencies are required to
observe detailed age distributions for small sources and high-sensitivity maps
will be needed in order to observe fainter extended emission. We do not observe
any correlation between the total physical size of the sources and their age
and we speculate both dynamical models and the approach to spectral age
analysis may need some modification to account for our observations.
