Today I saw on the internet an extract from a book which suggested Richard II's marriage to Anne of Bohemia was never consummated.
This is utter bull excrement. We know, as a fact, that Anne lost children she had conceived. For details, see Kathryn Warner's book on Richard.
So unless the Holy Ghost was busy in late 14th Century England, it's a certain as anything can be that happened over 600 years ago that the marriage was consummated.