Pierre I Mauclerc de Dreux

Pierre I Mauclerc de was born in 1191 in , Dreux, Eure-et-Loir, France.¹   Pierre I Mauclerc de's father was Robert II de Dreux and his mother was Yolande de Coucy. He had a brother and two sisters, named Robert III de, Philippe de and Eleanor.  He was the second oldest of the four children.  He died at the age of 59 in 1250.  He was buried in 1250 in , Braine-Sur-Vesle, Loire-Atlantique, France.^1 1