Where were the remains of explorer Matthew Flinders discovered in 2019?

His descendants were joined by the Bishop of Lincoln and dignitaries from Australia and Mauritius – where he was held captive during the Napoleonic wars – for a service at the Church of St Mary and the Holy Rood.
Capt Flinders died in 1814, but the exact location of his burial was lost in the mid-1800s. His remains were rediscovered in 2019