The Foster baronetcy, of Glyde Court in the County of Louth, was created in the Baronetage of the United Kingdom on 30 September 1831 for the diplomat Augustus Foster.
[1] The title became extinct on the death of the 4th Baronet in 1947.
[2] The baronetcy became extinct in 1947, on the death of the 4th Baronet who left no heir.
[2] The last baronet's sister Alice was paternal grandmother of Anna Wintour.
Fitzgerald Wintour married, secondly in 1912, Alice Jane Blanche Foster of Glyde Court, daughter of Major John Frederick Foster.