 Speyer's importance as the Salic memorial site soon declined and it took several generations until it became a royal burial site again.The emperor's long tenure of excommunication was probably the reason that only Gladbach, a reform monastery under Siegburg domain and the Niederaltaich Imperial Abbey, are the only monasteries that have adopted Henry V's memorial service.Matilda handed the imperial insignia to the Archbishop of Mainz and in September 1126 she returned to England.