diff --git a/lib/src/latvian/CatLav.gf b/lib/src/latvian/CatLav.gf
index 99e81e7b9..17f622432 100644
--- a/lib/src/latvian/CatLav.gf
+++ b/lib/src/latvian/CatLav.gf
@@ -55,9 +55,9 @@ lincat
 
   -- Nouns and noun phrases
 
-  CN = { s : Definiteness => Number => Case => Str ; gend : Gender } ;
+  CN = { s : Definiteness => Number => Case => Str ; gend : Gender ; isRel : Bool } ;
 
-  NP = { s : Case => Str ; agr : Agreement ; pol : Polarity } ;
+  NP = { s : Case => Str ; agr : Agreement ; pol : Polarity ; isRel : Bool } ;
 
   Pron = Pronoun ;
 
diff --git a/lib/src/latvian/ConjunctionLav.gf b/lib/src/latvian/ConjunctionLav.gf
index d3712e768..63934f0f4 100644
--- a/lib/src/latvian/ConjunctionLav.gf
+++ b/lib/src/latvian/ConjunctionLav.gf
@@ -18,7 +18,8 @@ lin
 
   ConjNP conj ss = conjunctDistrTable Case conj ss ** {
     agr = toAgr (fromAgr ss.agr).pers (conjNumber (fromAgr ss.agr).num conj.num) (fromAgr ss.agr).gend;
-    pol = Pos
+    pol = Pos ;
+    isRel = False
   } ;
 
   ConjAP conj ss = conjunctDistrTable4 Definiteness Gender Number Case conj ss ;
diff --git a/lib/src/latvian/ExtraLav.gf b/lib/src/latvian/ExtraLav.gf
index 0d2bc4824..d35383695 100644
--- a/lib/src/latvian/ExtraLav.gf
+++ b/lib/src/latvian/ExtraLav.gf
@@ -11,10 +11,12 @@ in {
 flags coding = utf8 ;
 
 lin
+
   -- NP -> CN -> CN
   GenCN np cn = {
-    s = \\d,n,c => np.s ! Gen ++ cn.s ! d ! n ! c ;
-    gend = cn.gend
+    s     = \\d,n,c => np.s ! Gen ++ closeRelCl np.isRel ++ cn.s ! d ! n ! c ;
+    gend  = cn.gend ;
+    isRel = cn.isRel
   } ;
 
   aiz_Prep = mkPrep "aiz" Gen Dat ;
diff --git a/lib/src/latvian/NounLav.gf b/lib/src/latvian/NounLav.gf
index ce5b2ad04..6e1a190f6 100644
--- a/lib/src/latvian/NounLav.gf
+++ b/lib/src/latvian/NounLav.gf
@@ -14,61 +14,86 @@ lin
   -- Det -> CN -> NP
   -- e.g. 'the man'
   DetCN det cn = {
-    s   = \\c => det.s ! cn.gend ! c ++ cn.s ! det.defin ! det.num ! c ;
-    agr = AgrP3 det.num cn.gend ;
-    pol = det.pol
+    s     = \\c => det.s ! cn.gend ! c ++ cn.s ! det.defin ! det.num ! c ;
+    agr   = AgrP3 det.num cn.gend ;
+    pol   = det.pol ;
+    isRel = cn.isRel
   } ;
 
   -- PN -> NP
   -- e.g. 'John'
-  UsePN pn = { s = pn.s ; agr = AgrP3 pn.num pn.gend ; pol = Pos } ;
+  UsePN pn = {
+    s     = pn.s ;
+    agr   = AgrP3 pn.num pn.gend ;
+    pol   = Pos ;
+    isRel = False
+  } ;
 
   -- Pron -> NP
   -- e.g. 'he'
-  UsePron pron = { s = pron.s ; agr = pron.agr ; pol = pron.pol } ;
+  UsePron pron = {
+    s     = pron.s ;
+    agr   = pron.agr ;
+    pol   = pron.pol ;
+    isRel = False
+  } ;
 
   -- Predet -> NP -> NP
   -- e.g. 'only the man'
   PredetNP predet np = {
-    s   = \\c => predet.s ! (fromAgr np.agr).gend ++ np.s ! c ;
-    agr = np.agr ;
-    pol = np.pol
+    s     = \\c => predet.s ! (fromAgr np.agr).gend ++ np.s ! c ;
+    agr   = np.agr ;
+    pol   = np.pol ;
+    isRel = np.isRel
   } ;
 
   -- NP -> V2 -> NP
   -- e.g. 'the man seen'
   PPartNP np v2 = {
-    s   = \\c => v2.s ! Pos ! (VPart Pass (fromAgr np.agr).gend (fromAgr np.agr).num c) ++ np.s ! c ;
-    agr = np.agr ;
-    pol = np.pol
+    s     = \\c => v2.s ! Pos ! (VPart Pass (fromAgr np.agr).gend (fromAgr np.agr).num c) ++ np.s ! c ;
+    agr   = np.agr ;
+    pol   = np.pol ;
+    isRel = np.isRel
   } ;
 
   -- NP -> Adv -> NP
   -- e.g. 'Paris today'
   AdvNP np adv = {
-    s = \\c => np.s ! c ++ adv.s ;
-    agr = np.agr ;
-    pol = np.pol
+    s     = \\c => np.s ! c ++ adv.s ;
+    agr   = np.agr ;
+    pol   = np.pol ;
+    isRel = False
   } ;
 
   -- NP -> RS -> NP
   -- e.g. 'Paris, which is here'
   RelNP np rs = {
-    s = \\c => np.s ! c ++ "," ++ rs.s ! np.agr ;
-    agr = np.agr ;
-    pol = np.pol
+    s     = \\c => np.s ! c ++ "," ++ rs.s ! np.agr ;
+    agr   = np.agr ;
+    pol   = np.pol ;
+    isRel = True
+  } ;
+
+  -- CN -> NP
+  MassNP cn = {
+    s     = cn.s ! Indef ! Sg ;  -- FIXME: bet 'šis alus'? un 'zaļš alus' vs. 'zaļais alus'?
+    agr   = AgrP3 Sg cn.gend ;
+    pol   = Pos ;
+    isRel = cn.isRel
   } ;
 
   -- Det -> NP
   -- e.g. 'these five'
   DetNP det = {
-    s = \\c => det.s ! Masc ! c ;
-    agr = AgrP3 det.num Masc ;
-    pol = det.pol
+    s     = \\c => det.s ! Masc ! c ;
+    agr   = AgrP3 det.num Masc ;
+    pol   = det.pol ;
+    isRel = False
   } | {
-    s = \\c => det.s ! Fem ! c ;
-    agr = AgrP3 det.num Fem ;
-    pol = det.pol
+    s     = \\c => det.s ! Fem ! c ;
+    agr   = AgrP3 det.num Fem ;
+    pol   = det.pol ;
+    isRel = False
   } ;
 
   -- Determiners
@@ -87,7 +112,7 @@ lin
   DetQuantOrd quant num ord = {
     s     = \\gend,c => quant.s ! gend ! num.num ! c ++ num.s ! gend ! c ++ ord.s ! gend ! c ;
     num   = num.num ;
-    defin = quant.defin ; --FIXME: ja ir kārtas skaitļa vārds, tad tikai noteiktās formas
+    defin = quant.defin ;  -- FIXME: ja ir kārtas skaitļa vārds, tad tikai noteiktās formas
     pol   = quant.pol
   } ;
 
@@ -133,13 +158,6 @@ lin
   -- Quant
   DefArt = { s = \\_,_,_ => [] ; defin = Def ; pol = Pos } ;
 
-  -- CN -> NP
-  MassNP cn = {
-    s   = cn.s ! Indef ! Sg ;  -- FIXME: bet 'šis alus'? un 'zaļš alus' vs. 'zaļais alus'?
-    agr = AgrP3 Sg cn.gend ;
-    pol = Pos
-  } ;
-
   -- Pron -> Quant
   PossPron pron = { s = pron.poss ; defin = Def ; pol = Pos } ;
 
@@ -147,19 +165,24 @@ lin
 
   -- N -> CN
   -- e.g. 'house'
-  UseN n = { s = \\_ => n.s ; gend = n.gend } ;
+  UseN n = { s = \\_ => n.s ; gend = n.gend ; isRel = False } ;
 
   -- N2 -> NP -> CN
   -- e.g. 'mother of the king'
   ComplN2 n2 np = {
-    s    = \\_,num,c => preOrPost n2.isPre (n2.prep.s ++ np.s ! (n2.prep.c ! (fromAgr np.agr).num)) (n2.s ! num ! c) ;
-    gend = n2.gend
+    s     = \\_,num,c => preOrPost n2.isPre 
+              (n2.prep.s ++ np.s ! (n2.prep.c ! (fromAgr np.agr).num) ++ closeRelCl np.isRel) 
+              (n2.s ! num ! c) ;
+    gend  = n2.gend ;
+    isRel = False
   } ;
 
   -- N3 -> NP -> N2
   -- e.g. 'distance from this city (to Paris)'
   ComplN3 n3 np = {
-    s     = \\num,c => preOrPost n3.isPre1 (n3.prep1.s ++ np.s ! (n3.prep1.c ! (fromAgr np.agr).num)) (n3.s ! num ! c) ;
+    s     = \\num,c => preOrPost n3.isPre1 
+              (n3.prep1.s ++ np.s ! (n3.prep1.c ! (fromAgr np.agr).num) ++ closeRelCl np.isRel) 
+              (n3.s ! num ! c) ;
     gend  = n3.gend ;
     prep  = n3.prep2 ;
     isPre = n3.isPre2
@@ -167,7 +190,7 @@ lin
 
   -- N2 -> CN
   -- e.g. 'mother'
-  UseN2 n2 = { s = \\_ => n2.s ; gend = n2.gend } ;
+  UseN2 n2 = { s = \\_ => n2.s ; gend = n2.gend ; isRel = False } ;
 
   -- N3 -> N2
   -- e.g. 'distance (from this city)'
@@ -180,29 +203,33 @@ lin
   -- AP -> CN -> CN
   -- e.g. 'big house'
   AdjCN ap cn = {
-    s    = \\defin,num,c => ap.s ! defin ! cn.gend ! num ! c ++ cn.s ! defin ! num ! c ;
-    gend = cn.gend
+    s     = \\defin,num,c => ap.s ! defin ! cn.gend ! num ! c ++ cn.s ! defin ! num ! c ;
+    gend  = cn.gend ;
+    isRel = cn.isRel
   } ;
 
   -- CN -> RS -> CN
   -- e.g. 'house that John bought'
   RelCN cn rs = {
-    s    = \\defin,num,c => cn.s ! defin ! num ! c ++ "," ++ rs.s ! AgrP3 num cn.gend ;
-    gend = cn.gend
+    s     = \\defin,num,c => cn.s ! defin ! num ! c ++ "," ++ rs.s ! AgrP3 num cn.gend ;
+    gend  = cn.gend ;
+    isRel = True
   } ;
 
   -- CN -> Adv -> CN
   -- e.g. 'house on the hill'
   AdvCN cn adv = {
-    s    = \\defin,num,c => cn.s ! defin ! num ! c ++ adv.s ;
-    gend = cn.gend
+    s     = \\defin,num,c => cn.s ! defin ! num ! c ++ adv.s ;
+    gend  = cn.gend ;
+    isRel = False  -- TODO: Adv arī būs jāievieš isRel lauks
   } ;
 
   -- CN -> SC -> CN
   -- e.g. 'question where she sleeps'
   SentCN cn sc = {
-    s    = \\defin,num,c => cn.s ! defin ! num ! c ++ "," ++ sc.s ;
-    gend = cn.gend
+    s     = \\defin,num,c => cn.s ! defin ! num ! c ++ "," ++ sc.s ;
+    gend  = cn.gend ;
+    isRel = True
   } ;
 
   -- Apposition
@@ -211,8 +238,9 @@ lin
   -- e.g. 'city Paris', 'numbers x and y'
   ApposCN cn np = 
     let num : Number = (fromAgr np.agr).num in {
-      s    = \\defin,num,c => cn.s ! defin ! num ! c ++ np.s ! c ;
-      gend = cn.gend
+      s     = \\defin,num,c => cn.s ! defin ! num ! c ++ np.s ! c ;
+      gend  = cn.gend ;
+      isRel = np.isRel
     } ;
 
   -- TODO: Possessive and partitive constructs
diff --git a/lib/src/latvian/ResLav.gf b/lib/src/latvian/ResLav.gf
index 1ebc081c9..3a817e0bf 100644
--- a/lib/src/latvian/ResLav.gf
+++ b/lib/src/latvian/ResLav.gf
@@ -143,6 +143,12 @@ oper
       Masc => Masc
     } ;
 
+  closeRelCl : Bool -> Str = \isRel -> 
+    case isRel of {
+      True => "," ;
+      False => []
+    } ;
+
   vowel : pattern Str = #("a"|"ā"|"e"|"ē"|"i"|"ī"|"o"|"u"|"ū") ;
 
   simpleCons : pattern Str = #("c"|"d"|"l"|"n"|"s"|"t"|"z") ;
diff --git a/lib/src/latvian/SentenceLav.gf b/lib/src/latvian/SentenceLav.gf
index ec779103a..e3c0d06b2 100644
--- a/lib/src/latvian/SentenceLav.gf
+++ b/lib/src/latvian/SentenceLav.gf
@@ -78,6 +78,7 @@ oper
           Deb _ _ => np.s ! Dat ;  --# notpresent
           _       => np.s ! vp.leftVal
         } ++
+        closeRelCl np.isRel ++        
         buildVerb vp.v mood pol agr np.pol vp.rightPol ++  -- verb
         vp.compl ! np.agr                                  -- object(s), complements, adverbial modifiers
     } ;
diff --git a/lib/src/latvian/SymbolLav.gf b/lib/src/latvian/SymbolLav.gf
index 1a919c131..fd6236e82 100644
--- a/lib/src/latvian/SymbolLav.gf
+++ b/lib/src/latvian/SymbolLav.gf
@@ -18,19 +18,22 @@ lin
   CNIntNP cn i = {
     s = \\_ => cn.s ! Indef ! Sg ! Nom ++ i.s ;
     agr = AgrP3 Sg cn.gend ;
-    pol = Pos
+    pol = Pos ;
+    isRel = False
   } ;
 
   CNSymbNP det cn xs = {
     s = \\_ => det.s ! cn.gend ! Nom ++ cn.s ! det.defin ! det.num ! Nom ++ xs.s ;
     agr = AgrP3 det.num cn.gend ;
-    pol = Pos
+    pol = Pos ;
+    isRel = False
   } ;
 
   CNNumNP cn i = {
     s = \\_ => cn.s ! Indef ! Sg ! Nom ++ i.s ! Masc ! Nom ;
     agr = AgrP3 Sg cn.gend ;
-    pol = Pos
+    pol = Pos ;
+    isRel = False
   } ;
 
   SymbS sy = sy ;