St Magnus-the-Martyr is a historically rich church in London, notable for its connections to London Bridge.
The original Church of Saint Magnus-the-Martyr was built in the early 12th century and was certainly in existence by 1128-1133, serving the growing population around the north end of the old London Bridge.
After the Great Fire of London in 1666 destroyed the medieval building, the current church was designed and rebuilt by Sir Christopher Wren between 1671 and 1676, with further additions to the steeple occurring between 1703 and 1706.
London Bridge was originally a wooden Saxon bridge constructed around 1000 AD and later rebuilt as a stone bridge commissioned by King Henry II after the murder of Archbishop Thomas Becket in 1170. A chapel dedicated to Becket was built at the bridge’s center, and the bridgehead and the chapel were within St Magnus’s parish. This established the church as the primary religious gateway to the city from the south for over 600 years.
 
Interesting facts...
The archway you can see on the watercolour was actually the entrance to the old London Bridge. Inside you will find a model of the bridge which is well worth a look.