Thomas was a junior member of the House of "Plantagenet"
Because of their kinship and Lancaster's royal blood, the King commuted the sentence to mere beheading (as opposed to being drawn, quartered, and beheaded) and Lancaster was convicted of treason and executed near Pontefract Castle.
He had a relationship with Alice de Lacy.
Thomas Plantagenet | ||||||||||||||||||
Alice de Lacy |