Una forma
select t1.* from (select ForeignKeyId,AttributeName, max(Created) AS MaxCreated
from YourTable
group by ForeignKeyId,AttributeName) t2
join YourTable t1 on t2.ForeignKeyId = t1.ForeignKeyId
and t2.AttributeName = t1.AttributeName
and t2.MaxCreated = t1.Created
Consulte también Incluir los valores relacionados de una columna agregada para ver 5 formas diferentes de realizar este tipo de consulta