  Gravitational lensing provides unique insights into astrophysics and
cosmology, including the determination of galaxy mass profiles and constraining
cosmological parameters. We present spectroscopic confirmation and lens
modeling of the strong lensing system DESI-253.2534+26.8843, discovered in the
Dark Energy Spectroscopic Instrument (DESI) Legacy Imaging Surveys data. This
system consists of a massive elliptical galaxy surrounded by four blue images
forming an Einstein Cross pattern. We obtained spectroscopic observations of
this system using the Multi Unit Spectroscopic Explorer (MUSE) on ESO's Very
Large Telescope (VLT) and confirmed its lensing nature. The main lens, which is
the elliptical galaxy, has a redshift of $z_{L1} = 0.636\pm 0.001$, while the
spectra of the background source images are typical of a starburst galaxy and
have a redshift of $z_s = 2.597 \pm 0.001$. Additionally, we identified a faint
galaxy foreground of one of the lensed images, with a redshift of $z_{L2} =
0.386$. We employed the GIGA-Lens modeling code to characterize this system and
determined the Einstein radius of the main lens to be $\theta_{E}
=2.520{''}_{-0.031}^{+0.032}$, which corresponds to a velocity dispersion of
$\sigma$ = 379 $\pm$ 2 km s$^{-1}$. Our study contributes to a growing catalog
of this rare kind of strong lensing systems and demonstrates the effectiveness
of spectroscopic integral field unit observations and advanced modeling
techniques in understanding the properties of these systems.
