His tenure corresponds with a drop in the number of property transactions involving Farfa, perhaps because "[its] wealth was by that time sufficient to cover major building at the abbey itself".
[1] Sichard added an oratory to the existing abbey.
On Sichard's death in 842, Emperor Lothair I intervened to appoint Bishop Peter of Spoleto in charge of the abbey until an abbot, Hilderic, could be elected (in 844).
[2] Sichard's epitaph was copied into the Libellus constructionis Farfensis, the earliest history of Farfa, of which only a fragment survives in an eleventh-century lectionary.
The rediscovery, in 1959, of most of the epitaph demonstrates that the author of the Libellus was an accurate copyist.