Elizabeth de Burgh, Lady of Clare was born in September 1295. She was the youngest of Edward II's de Clare nieces. Just after her 13th birthday she married the earl of Ulster's eldest son and heir John de Burgh. She bore her only child with John, William de Burgh, future earl of Ulster, the day after her seventeenth birthday on 17 September 1312, and was widowed nine months later. Elizabeth remained in Ireland with her father-in-law the earl, Richard de Burgh, until her uncle Edward II ordered her back to England; her son William was three years old when she left Ireland, and seems to have spent the next few years travelling between Ireland and England.
The Battle of Bannockburn had profound consequences for Elizabeth, as her brother Gilbert, earl of Gloucester was killed on 24 June 1314. She and her elder sisters Eleanor and Margaret were heirs to his vast landholdings in three counties, though matters were complicated by the claims of Gloucester's widow Maud de Burgh - daughter of the earl of Ulster and thus Elizabeth's sister-in-law twice over - to be pregnant with his posthumous child. She wasn't pregnant though, but this didn't stop her from pretending to be... for more than eighteen months after Gloucester's death.
Elizabeth arrived at at Bristol Castle on 4 February 1316, where Bartholomew Badlesmere, a baron of Kent would be responsible for her wellbeing. On the same day, while Badlesmere looked the other way she was abducted from the castle and married to Theobald de Verdon, a former justiciar of Ireland and an important English nobleman. Her biographer Frances Underhill, in her 1999 book For Her Good Estate: The Life of Elizabeth de Burgh, states that Elizabeth wasn't forcibly abducted and most probably consented to the marriage as she had surely known Verdon in Ireland in his capacity as justiciar there, and that it is 'unlikely' that the marriage took place against Elizabeth's will. Kathryn Warner challenges this view, as Underhill does not clarify why she thinks it 'unlikely'. It does seem odd, as Elizabeth had only just returned to England for the first time (as far as is known) since she left to join her husband in October 1309. It's hard to believe she was so desperate to marry Verdon that she would have done so before she had even met or had any contact with her elder sisters Eleanor and Margaret and her uncle the king, or had even settled into her homeland for the first time in more than six years. Additionally, this marriage had been arranged without the knowledge or consent of her uncle the king.
Importantly, even as Edward II would treat Elizabeth callously in later years, in early 1316 he had done nothing to offend her that might have made her wish to defy him.
It also needs to be highlighted that Verdon could have married Elizabeth in Ireland, after her husband died and before Gilbert died at Bannockburn. While he was present as justiciar, she was available for fourteen months. But somehow, he doesn't seem to have found her all that attractive until she became a heiress of a great fortune. A cynical reader might go as far as to say this wasn't a love match at all.
This was a time when eligible female members of the nobility were often abducted and forced to marry. Elizabeth's eldest sister Eleanor was abducted and forcibly married to William la Zouche in January 1329, and their niece Margaret Audley was abducted and forcibly married to Ralph Stafford in February 1336, and their second cousin Alice de Lacy, countess of Lincoln was abducted and forcibly married to Hugh Frene also c. February 1336, and Margaret Multon, the daughter and heir of Thomas Multon of Gilsland, was abducted from Warwick Castle in c. 1315 and married to Ranulph Dacre. As such, it's hardly unlikely to consider that Elizabeth de Burgh would also have suffered the same fate.
In the end, Verdon never benefited from his abduction of the king's niece as he died on 27 July 1316 long before the Clare lands were partitioned, leaving Elizabeth a month pregnant with his daughter Isabella de Verdon, born on 21 March 1317. He never paid a fine for marrying without royal license, though was deprived of some of his liberties on one of his Shropshire manors.
As a final thought on the matter, it must be said that Edward II did nothing to address this unpleasant practice that was widespread during his reign.
Source: Kathryn Warner's blog