Possible Free BMD record:
Marriages Dec 1865
Hilliard John Scarbrow Pancras 1b 11
Pickering Henrietta Sarah Pancras 1b 11
Roberts Martha Pancras 1b 11
There is no Marendaz, but there is a bridgroom missing. I checked the images for the Dec quarter 1865, but couldn't find a Marendaz. Possibly the surname has been badly misspelt.