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We use the star formation history map of the Large Magellanic Cloud to studythe sites of the eight smallest (and presumably youngest) supernova remnants inthe Cloud: SN 1987A, N158A, N49, and N63A (core collapse remnants), 0509-67.5,0519-69.0, N103B, and DEM L71 (Type Ia remnants). The local star formationhistories provide unique insights into the nature of the supernova progenitors,which we compare with the properties of the supernova explosions derived fromthe remnants themselves and from supernova light echoes. We find that all thecore collapse supernovae that we have studied are associated with vigorous starformation in the recent past. Stars more massive than 21.5Msun are very scarcearound SNR N49, implying that the magnetar SGR 0526-66 in this SNR was eitherformed elsewhere or came from a progenitor with a mass well below the 30Msunthreshold suggested in the literature. Three of our four Ia SNRs are associatedwith old, metal poor stellar populations. This includes SNR 0509-67.5, which isknown to have been originated by an extremely bright Type Ia event, and yet islocated very far away from any sites of recent star formation, in a populationwith a mean age of 7.9 Gyr. The Type Ia SNR N103B, on the other hand, isassociated with recent star formation, and might have had a relatively youngerand more massive progenitor with substantial mass loss before the explosion. Wediscuss these results in the context of our present understanding of corecollapse and Type Ia supernova progenitors.

The Stellar Ancestry of Supernovae in the Magellanic Clouds - I. the Most Recent Supernovae in the Large Magellanic Cloud