Ada (the Elder) of Huntington

http://fmg.ac/Projects/MedLands/SCOTLAND.htm#Henrydied1152

[Earl David] m firstly ---. No direct evidence has been of this supposed first marriage of David. However, the date of David’s marriage to Matilda of Chester is late for this to have been his first marriage. In addition, his foundation charter for Lindores abbey refers to the donation of his daughter Ada, who was already married at the time and therefore considerably older than David’s children by his marriage to Matilda. Secondary sources generally assume that Ada was illegitimate. However, it is possibly that she was the daughter of an otherwise unrecorded earlier marriage of David, especially as she was given his mother’s name.

Earl David & his [first wife] had one child:  a)         ADA .  The undated charter, dated to before 1203 from the names of the subscribers, under which "Comes David frater regis Scottorum" founded Lindores Abbey refers to land "in villa de Neutile" donated by "Ada filia mea, uxor Malisii filii comitis Fertheth"[488].  As noted above, secondary sources mostly show Ada as David’s illegitimate daughter. The fact that she was given his mother’s name may indicate that she was legitimate, born from a possible first marriage.  "Malisius filius comitis Fertheth frater comitis Gilberti de Strathern" donated "Rathangothen" to Lindores Abbey, for the soul of "uxoris mee filie comitis David", by undated charter, witnessed by "Waltero Olifard, David de Lindeseia…David Olifard…"[489].  "Ada filia comitis David uxor Malisii filii comitis Fertheth" donated land "in villa de Balemagh" to Lindores Abbey by undated charter[490].  m MALISE, son of FERTETH [Ferquhard] Earl of Strathearn & his wife Ethen --- ([after 1150]-).