Original: Joan 1272 23 Apr. 1307 Married (1) in 1290 Gilbert de Clare, Earl of Hertford, who died in 1295, and (2) in 1297 Ralph de Monthermer.
Simplified: She married (1) in 1290 Gilbert de Clare, 7th Earl of Hertford, who died in 1295, and (2) in 1297 Ralph de Monthermer, 1st Baron Monthermer.