On this date in 1011:

St. Alphege Captured
Alphege (or Elphege or Aelfheah), Archbishop of Canterbury, was captured by marauding Danes, held prisoner for months, and eventually murdered. He refused to allow himself to be ransomed because the money would have had to be raised by taxing the people. After his death he was venerated as a martyr, and the parish church of Greenwich is dedicated to him.