Sir Walter Tyrell of Heron
Walter was born about 1320 in Heron, East Horndon, Essex, England.

 Jane Swynford
Jane was born about 1324 in Heron, East Horndon, Essex, England.  Jane is no longer alive.

 Sir Walter Tyrell of Heron
Walter was born about 1348 in Heron, East Horndon, Essex, England.  He died in 1406 in Heron, East Horndon, Essex, England.