Given the task definition and input, reply with output. In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Context: When Edmund's son Thomas, 2nd Earl of Lancaster, inherited his father-in-law's estates and title of Earl of Lincoln Link Information: By his marriage to Alice de Lacy, Countess of Lincoln, daughter and heiress of Henry de Lacy, 3rd Earl of Lincoln, he became Earl of Lincoln, Earl of Salisbury, 11th Baron of Halton and 7th Lord of Bowland upon the death of his father-in-law in 1311. Question: Who was the 2nd Earl of Lancaster's father-in-law?
Answer: Henry de Lacy, 3rd Earl of Lincoln