According to the historian Michael Lapidge, King Æthelberht II of East Anglia was murdered in the village in 794 on the order of Offa of Mercia.

[1] The parish church, dedicated to St. Mary the Virgin, has been designated a Grade I listed building since 26 January 1967.

[5] The Marches Way long-distance footpath passes through the village and, heading south, then crosses Sutton Walls Hill Fort.

[6] In 2009, a company growing, packing, importing and exporting soft fruit and asparagus was based in the village, and employed more than 2,400 people, predominantly Romanians and Bulgarians, to work on its farms in Herefordshire and Kent.

[7] The cattle breeder, Richard de Quincey, lived in Marden from 1922 until his death in 1965.