Context : The Large Magellanic Cloud ( LMC ) hosts a rich and varied population of supernova remnants ( SNRs ) .
Optical , X-ray , and radio observations are required to identify these SNRs , as well as to ascertain the various processes responsible for the large array of physical characteristics observed .

Aims : In this paper we attempted to confirm the candidate SNR [ HP99 ] 1234 , identified in X-rays with ROSAT , as a true SNR by supplementing these X-ray data with optical and radio observations .

Methods : Optical data from the Magellanic Cloud Emission Line Survey ( MCELS ) and new radio data from the Molonglo Observatory Synthesis Telescope ( MOST ) , in addition to the ROSAT X-ray data , were used to perform a multiwavelength morphological analysis of this candidate SNR .

Results : An approximately ellipsoidal shell of enhanced [ S ii ] emission , typical of an SNR ( [ S ii ] /H \alpha > 0.4 ) , was detected in the optical .
This enhancement is positionally coincident with faint radio emission at \lambda = 36 cm .
Using the available data we estimated the size of the remnant to be \sim 5.1 \arcmin \times 4.0 \arcmin ( \sim 75 pc \times 59 pc ) .
However , the measurement along the major-axis was somewhat uncertain due to a lack of optical and radio emission at its extremities and the poor resolution of the X-ray data .
Assuming this SNR is in the Sedov phase and adopting the ambient mass density of 1.2 \times 10 ^ { -25 } g cm ^ { -3 } measured in a nearby H ii region , an age estimate of \sim 25 kyr was calculated for a canonical initial explosion energy of 10 ^ { 51 } erg .
However , this age estimate should be treated cautiously due to uncertainties on the adopted parameters .
Analysis of the local stellar population suggested a type Ia event as a precursor to this SNR , however , a core-collapse mechanism could not be ruled out due to the possibility of the progenitor being a runaway massive star .

Conclusions : With the detection of X-ray , radio and significant optical line emission with enhanced [ S ii ] , this object was confirmed as an SNR to which we assign the identifier MCSNR J0527 - 7104 .