So this is something that I've brought up before, but after doing some reading I was wanting to gather some more opinions.
Lionel of Antwerp was the 1st Duke of Clarence and second surviving son of Edward III.
He died in 1368, aged 30, after his marriage to Violante Visconti, he had previously been married to Elizabeth de Burgh, through whom he'd sired a daughter Philippa, who would later give the Mortimers and the Yorks their solid claim to the throne.
I guess this long rambling thing is that, say Lionel does not die in 1368, and instead returns to England with his new bride, who had a sizeable inheritance herself, what role would Lionel and his wife play in England during the 1370s and onwards? What role could any children they might have play? Especially in Italy, and in the court and regency of Richard II?