In addition to her inherited lands in Normandy and England (which included much of the eastern part of Yorkshire known as Holderness), she received in dower one-third of the substantial Mandeville estates.
Selain tanah warisannya di Normandia dan Inggris (yang mencakup sebagian besar bagian timur Yorkshire yang dikenal sebagai Holderness), ia menerima mahar lebih dari sepertiga wilayah Mandeville yang substansial.