# Roger Mortimer, 4th Earl of March

> heir presumptive to Richard II of England between 1385 and 1398

**Wikidata**: [Q953078](https://www.wikidata.org/wiki/Q953078)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Roger_Mortimer,_4th_Earl_of_March)  
**Source**: https://4ort.xyz/entity/roger-mortimer-4th-earl-of-march


## References

1. The Peerage
2. Source
3. Freebase Data Dumps. 2013
4. Sejm-Wielki.pl