His name is recorded in a summons to Parliament in 25 August 1404 as Richard Straunge.
-- Tudorplace Le Strange Genealogy, tudorplace.com
Some sources fail to show Richard in the line of family members inheriting the title of Lord Strange of Knockin. They show John, father of Joan Le Strange, as son of John VIII. Because Tudorplace starts the Barony one generation earlier, it also reports Richard as the 8th Lord Strange of Knockin, whereas I follow what appears to be the more standard reckoning and list him as 7th Lord Strange of Knockin.
From this generation the Barony of Strange of Knockin passes into the Stanley family, through Joan Strange, daughter of John son of Richard and Jacquette Woodville, who married George Stanley. Their son Thomas Stanley was the 2nd Earl of Derby and another son James became Marshall of Ireland.
Some sources show Joan's father John as the son of John as the daughter of Richard's brother John. The Tudorplace Le Strange Genealogy shows the Barony passing from John to Richard, then to Richard's daughter.