Richard Price and Maria Watts were married in Isleworth, Middlesex, England on April 20, 1802 by W. Langford. The witnesses were Simon and Sarah Pearce. They were married by banns, the banns having been read on March 21st, 28th, and April 4th.
Marriage Record (the middle entry, no. 10 on the following image):
Both the bride and groom must have been of age to marry, but beyond that, this record doesn't give us any clues to their age. It would be interesting to find out more about the witness couple: Simon Pearce and Sarah Pearce--probably husband & wife (but not necessarily). They could have been friends, neighbors, or relatives, or none of these, I suppose.