Today the church remembers Stephen, the first recorded Christian martyr:

When they heard these things, they became enraged and ground their teeth at Stephen. But filled with the Holy Spirit, he gazed into heaven and saw the glory of God and Jesus standing at the right hand of God. ‘Look,’ he said, ‘I see the heavens opened and the Son of Man standing at the right hand of God!’ But they covered their ears, and with a loud shout all rushed together against him. Then they dragged him out of the city and began to stone him
(Acts of the Apostles, chapter 7, verses 54-58, NRSV)

This window is in the chancel of Holy Innocents’ church, High Beech, Essex.