Robert le Croc

From http://edurnford.blogspot.com/2014/08/11c1f-maud-la-zouche-married-...

Siward de Longsworth de Holand (son of Count Dirk VI de Longworth 1114-1157 and Countess Sofie van Salm von de Rheineck) married Julana de Robert, the daughter of Robert le Croc de Longsworth.

Is this Robert a descendant of Alan de Holland of Downholland, Lancashire (http://www.british-history.ac.uk/report.aspx?compid=53192, search for "Alan")?

Comment June 2016: seems to have retroactively picked up "de Holland" in his geni name from his daughter's marriage to Siward de Holand.

From http://corkerhillhistory.webs.com/earlyhistorycorkerhill.htm

Around 1202 Sir Robert De Croc built a wooden motte fort on a prominent drumlin, a small hillock, which is now the site of Crookston Castle. The de Croc line resided at Crookston Castle for the next hundred years and the following is the known lineage[6]:- 

Sir Robert de Croc m. Eschyma de Molle

(Inherited the Crookisfeu from Walter Fitzalan c. 1202)

Alan Croc (1202-1246)

Simon Croc

Walter Croc (1203)

Isabelle de Molle m. Robert de Pollock

(footnote 6 is a dead link as of June 2016)

• page 115 - 118 of Follow the Arrow

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From page 41 of Descriptive Catalogue of Impressions from Ancient Scottish Seals, Royal ... By Henry Laing

221. CROC, ROBERT. Plate X. fig. 11. On a heart-shape shield three crooks.

"Sigillum Roberti Croc."—Appended to a Charter by Isabella, the daughter of Robert Croc, widow of Robert Polloc, the lady of Molle, to Simon Lindsay, of the lands of Hungerig, in Teviotdale. c. A.d. 1200.—Melros Charters.